Electronic gear shifter and control method thereof
阅读说明：本技术 电子换挡器及其控制方法 (Electronic gear shifter and control method thereof ) 是由 张攀 袁世冬 张永祥 于 2020-06-12 设计创作，主要内容包括：本发明公开了电子换挡器及其控制方法。电子换挡器包括一换挡转轴、一锁止齿轮、一马达、一蜗杆、一解锁位置光电传感器、一锁止位置光电传感器和一电路板,其中：位于所述电子换挡器内部的所述马达被位于所述电路板的一控制电路受控启动；所述蜗杆与所述锁止齿轮传动连接,使得所述解锁位置光电传感器挡片与所述锁止齿轮同步转动。本发明公开的电子换挡器及其控制方法,占用空间小,将锁止凸轮、齿轮、光耦挡片集成到锁止齿轮上,锁止状态下齿轮轴受力仅为一个方向,受力不产生其它方向上面的分力,结构更加简洁可靠,整体结构的缩小并未使得换挡器功能缺失,与此同时给整车其它零件留下充足空间进行布置。(The invention discloses an electronic shifter and a control method thereof. The electronic gear shifter comprises a gear shifting rotating shaft, a locking gear, a motor, a worm, an unlocking position photoelectric sensor, a locking position photoelectric sensor and a circuit board, wherein: the motor located inside the electronic shifter is controlled to be activated by a control circuit located on the circuit board; the worm is in transmission connection with the locking gear, so that the blocking piece of the photoelectric sensor at the unlocking position and the locking gear rotate synchronously. The electronic shifter and the control method thereof disclosed by the invention have the advantages that the occupied space is small, the locking cam, the gear and the optical coupling blocking piece are integrated on the locking gear, the stress of the gear shaft is only one direction in the locking state, the force is not applied to generate component forces in other directions, the structure is simpler and more reliable, the function of the shifter is not lost due to the reduction of the whole structure, and meanwhile, sufficient space is reserved for other parts of the whole vehicle to be arranged.)
1. An electronic gear shifter, comprising a gear shifting rotating shaft, a locking gear, a motor, a worm, an unlocking position photoelectric sensor, a locking position photoelectric sensor and a circuit board, wherein:
the motor located inside the electronic shifter is controlled to be activated by a control circuit located on the circuit board;
the worm is in transmission connection with the locking gear, so that the blocking piece of the photoelectric sensor at the unlocking position and the locking gear rotate synchronously;
when the locking gear drives the unlocking position photoelectric sensor separation blade to rotate, the unlocking position photoelectric sensor separation blade is separated from the middle position of the unlocking position photoelectric sensor, so that the motor is controlled to stop by a microcontroller module located on the circuit board;
the motor located inside the electronic shifter is controlled to be activated by the above control circuit located on the circuit board, so that the locking cam located on the locking gear is controlled to rotate;
when the motor drives the locking cam positioned on the locking gear to rotate, the blocking piece of the photoelectric sensor at the locking position is made to rotate to trigger the photoelectric sensor at the locking position to generate an electric signal, so that the motor is controlled by the microcontroller module positioned on the circuit board to stop, and the gear shifting rotating shaft is further reset to a locking point.
2. The electronic shifter of claim 1, further comprising a gear, wherein the locking cam, the gear, and the light coupling tab are all integrated into the locking gear.
3. The electronic shifter of any one of claims 1-2, wherein the locking cam is sector-shaped concentric.
4. The electronic shifter of any one of claims 1-2, wherein the detent point is forced in a point contact.
5. The electronic shifter of any one of claims 1-2, wherein the circuit board includes a microcontroller module, a power management module, an unlocking and locking module, and a number of gear sensors, wherein:
the microcontroller module comprises a main control chip U4;
the unlocking and locking module comprises an unlocking unit and a locking unit, wherein:
the pin 27 of the main control chip U4 is connected to the BLK _ REL end of the unlocking unit;
pin 56 of the main control chip U4 is connected to the BLK _ LOCK end of the locking unit;
a No. 40 pin of the main control chip U4 is connected to a REL _ DTC end of the unlocking unit;
the pin No. 41 of the main control chip U4 is connected to the LOCK _ DTC section of the locking unit;
a pin No. 42 of the main control chip U4 is connected to a WAKEUP _ mes end of the power management module;
a pin 57 of the main control chip U4 is connected to the CPU _ SLEEP terminal of the power management module;
the No. 1 pin of the main control chip U4 is connected to a NETURAL end of one of the gear sensors;
a No. 10 pin of the main control chip U4 is connected to a NETURAL _ B end of one of the gear sensors;
a pin No. 11 of the main control chip U4 is connected to the FWD _ M _ B end of one of the gear sensors;
the No. 12 pin of the main control chip U4 is based on the FWD _ M end of one of the gear sensors;
a pin No. 28 of the main control chip U4 is connected to the FWD end of one of the gear sensors;
a pin No. 29 of the main control chip U4 is connected to the FWD _ B end of one of the gear sensors;
a pin No. 51 of the main control chip U4 is connected to the RVS _ B end of one of the gear sensors;
a pin No. 55 of the main control chip U4 is connected to the RVS end of one of the gear sensors;
a pin No. 58 of the main control chip U4 is connected to the RVS _ M _ B end of one of the gear sensors;
a pin 59 of the main control chip U4 is connected to the RVS _ M end of one of the gear sensors;
a pin No. 38 of the main control chip U4 is connected to a VBAT _ mes end of the power management module;
and a No. 43 pin of the main control chip U4 is connected to a 5V _ mes end of the power management module.
6. An electronic shifter control method, comprising the steps of:
step S1: a control circuit positioned on the circuit board is controlled to start a motor positioned inside the electronic gear shifter;
step S2: the worm is in transmission connection with the locking gear, so that the blocking piece of the photoelectric sensor at the unlocking position and the locking gear rotate synchronously;
step S3: when the locking gear drives the unlocking position photoelectric sensor separation blade to rotate, the unlocking position photoelectric sensor separation blade leaves the middle position of the unlocking position photoelectric sensor, so that the motor is controlled to stop by the microcontroller module positioned on the circuit board;
step S4: a control circuit positioned on the circuit board is controlled to start a motor positioned in the electronic gear shifter, and a locking cam positioned on the locking gear is controlled to rotate;
step S5: when the motor drives the locking cam located at the locking gear to rotate, the blocking piece of the photoelectric sensor at the locking position is triggered to rotate to trigger the photoelectric sensor at the locking position to send an electric signal to the motor, so that the motor is controlled to stop by the microcontroller module located on the circuit board, and the gear shifting rotating shaft is reset to a locking point.
7. The electronic shifter control method of claim 6, further comprising a gear, wherein the locking cam, the gear, and the light coupling tab are all integrated into the locking gear.
8. The electronic shifter control method of any one of claims 6-7, wherein the locking cam is sector-shaped concentric.
9. The electronic shifter control method of any one of claims 6-7 wherein the detent point is forced in a point contact.
10. The electronic shifter control method of any one of claims 6-7, wherein the circuit board includes a microcontroller module, a power management module, an unlocking and locking module, and a number of gear sensors, wherein:
the microcontroller module comprises a main control chip U4;
the unlocking and locking module comprises an unlocking unit and a locking unit, wherein:
the pin 27 of the main control chip U4 is connected to the BLK _ REL end of the unlocking unit;
pin 56 of the main control chip U4 is connected to the BLK _ LOCK end of the locking unit;
a No. 40 pin of the main control chip U4 is connected to a REL _ DTC end of the unlocking unit;
the pin No. 41 of the main control chip U4 is connected to the LOCK _ DTC section of the locking unit;
a pin No. 42 of the main control chip U4 is connected to a WAKEUP _ mes end of the power management module;
a pin 57 of the main control chip U4 is connected to the CPU _ SLEEP terminal of the power management module;
the No. 1 pin of the main control chip U4 is connected to a NETURAL end of one of the gear sensors;
a No. 10 pin of the main control chip U4 is connected to a NETURAL _ B end of one of the gear sensors;
a pin No. 11 of the main control chip U4 is connected to the FWD _ M _ B end of one of the gear sensors;
the No. 12 pin of the main control chip U4 is based on the FWD _ M end of one of the gear sensors;
a pin No. 28 of the main control chip U4 is connected to the FWD end of one of the gear sensors;
a pin No. 29 of the main control chip U4 is connected to the FWD _ B end of one of the gear sensors;
a pin No. 51 of the main control chip U4 is connected to the RVS _ B end of one of the gear sensors;
a pin No. 55 of the main control chip U4 is connected to the RVS end of one of the gear sensors;
a pin No. 58 of the main control chip U4 is connected to the RVS _ M _ B end of one of the gear sensors;
a pin 59 of the main control chip U4 is connected to the RVS _ M end of one of the gear sensors;
a pin No. 38 of the main control chip U4 is connected to a VBAT _ mes end of the power management module;
and a No. 43 pin of the main control chip U4 is connected to a 5V _ mes end of the power management module.
Technical Field
The invention belongs to the technical field of automotive electric appliances, and particularly relates to an electronic gear shifter and a control method of the electronic gear shifter.
Background
The automobile gear shifter on the market at present mainly comprises a rod type gear shifter, a chest type gear shifter, a knob type gear shifter and a key type gear shifter.
The lever type gear shifter is complex to operate, the brake is stepped on after the automobile is started, the unlocking button is pressed, the handle is dragged to a required gear, maintenance is inconvenient, the occupied whole automobile space is large, the position is located between a driver and a copilot and is convex, the attractive effect is influenced, and a great deal of inconvenience is caused by the fact that actions in the automobile are easily touched at ordinary times.
Wherein, the formula selector mounted position that cup keeps off is in the steering wheel side to stretch out longer operation portion, originally install the windscreen wiper at here and need move the steering wheel left side, increase the whole structure complexity of steering wheel, drive the easy touching of in-process arm shank, easy touching when the driving is turned and is beaten the steering wheel occupies the great space of whole car, whole arrangement is untidy.
The installation positions of the knob type gear shifter and the key type gear shifter are low, a driver needs to look over the gear with a head down when operating the gear shifting device, driving safety is affected, attention is not concentrated, gear switching errors are easily caused, the gear shifting key needs to be looked over with a head down during the process of backing and parking, blind operation and continuous operation cannot be achieved, a self-locking stress point of the cam mechanism generates component force, a gear shaft is subjected to tangential force and normal force at the same time, positioning is unreliable, and the gear shifting device needs to be further improved.
Disclosure of Invention
The present invention is directed to the state of the art, overcoming the above drawbacks, and providing an electronic shifter and a method of controlling an electronic shifter.
The invention discloses an electronic gear shifter and a control method thereof, and mainly aims to occupy small space, integrate a locking structure (a locking cam), a transmission structure (a gear) and a self-return trigger structure (an optical coupling catch) on the locking gear, and optimize a traditional cam locking structure on the original old structure, so that the stress of a gear shaft is only one direction in a locking state, the stress does not generate component forces in other directions, the structure is simpler and more reliable, the function of the gear shifter is not lost due to the reduction of the overall structure, and meanwhile, sufficient space is left for other parts of the whole vehicle to be arranged.
The invention discloses an electronic gear shifter and a control method thereof, and the electronic gear shifter is characterized in that a locking mechanism is in a sector concentric circle shape, point contact stress is generated at a locking position, component force in other directions is not generated when stress is applied, a gear rotating shaft is single in stress, and safety and reliability are high.
The invention discloses an electronic gear shifter and a control method thereof, and further aims to integrate a photoelectric position sensor trigger structure, a self-locking cam structure and a transmission gear structure on a gear shaft.
The invention adopts the following technical scheme that the electronic gear shifter comprises a gear shifting rotating shaft, a locking gear, a motor, a worm, an unlocking position photoelectric sensor, a locking position photoelectric sensor and a circuit board, wherein:
the motor located inside the electronic shifter is controlled to be activated by a control circuit located on the circuit board;
the worm is in transmission connection with the locking gear, so that the blocking piece of the photoelectric sensor at the unlocking position and the locking gear rotate synchronously;
when the locking gear drives the unlocking position photoelectric sensor separation blade to rotate, the unlocking position photoelectric sensor separation blade is separated from the middle position of the unlocking position photoelectric sensor, so that the motor is controlled to stop by a microcontroller module located on the circuit board;
the motor located inside the electronic shifter is controlled to be activated by the above control circuit located on the circuit board, so that the locking cam located on the locking gear is controlled to rotate;
when the motor drives the locking cam positioned on the locking gear to rotate, the blocking piece of the photoelectric sensor at the locking position is made to rotate to trigger the photoelectric sensor at the locking position to generate an electric signal, so that the motor is controlled by the microcontroller module positioned on the circuit board to stop, and the gear shifting rotating shaft is further reset to a locking point.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the electronic shifter further includes a gear, and the lock cam, the gear, and the photocoupler blade are all integrated with the lock gear.
According to the above aspect, as a more preferable aspect of the above aspect, the lock cam has a fan-shaped concentric circle shape.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the locking point is point-contact stressed.
According to the above technical solution, as a further preferred technical solution of the above technical solution, the circuit board includes a microcontroller module, a power management module, an unlocking and locking module, and a plurality of gear sensors, wherein:
the microcontroller module comprises a main control chip U4;
the unlocking and locking module comprises an unlocking unit and a locking unit, wherein:
the pin 27 of the main control chip U4 is connected to the BLK _ REL end of the unlocking unit;
pin 56 of the main control chip U4 is connected to the BLK _ LOCK end of the locking unit;
a No. 40 pin of the main control chip U4 is connected to a REL _ DTC end of the unlocking unit;
the pin No. 41 of the main control chip U4 is connected to the LOCK _ DTC section of the locking unit;
a pin No. 42 of the main control chip U4 is connected to a WAKEUP _ mes end of the power management module;
a pin 57 of the main control chip U4 is connected to the CPU _ SLEEP terminal of the power management module;
the No. 1 pin of the main control chip U4 is connected to a NETURAL end of one of the gear sensors;
a No. 10 pin of the main control chip U4 is connected to a NETURAL _ B end of one of the gear sensors;
a pin No. 11 of the main control chip U4 is connected to the FWD _ M _ B end of one of the gear sensors;
the No. 12 pin of the main control chip U4 is based on the FWD _ M end of one of the gear sensors;
a pin No. 28 of the main control chip U4 is connected to the FWD end of one of the gear sensors;
a pin No. 29 of the main control chip U4 is connected to the FWD _ B end of one of the gear sensors;
a pin No. 51 of the main control chip U4 is connected to the RVS _ B end of one of the gear sensors;
a pin No. 55 of the main control chip U4 is connected to the RVS end of one of the gear sensors;
a pin No. 58 of the main control chip U4 is connected to the RVS _ M _ B end of one of the gear sensors;
a pin 59 of the main control chip U4 is connected to the RVS _ M end of one of the gear sensors;
a pin No. 38 of the main control chip U4 is connected to a VBAT _ mes end of the power management module;
and a No. 43 pin of the main control chip U4 is connected to a 5V _ mes end of the power management module.
The invention further discloses a control method of the electronic gear shifter, which comprises the following steps:
step S1: a control circuit positioned on the circuit board is controlled to start a motor positioned inside the electronic gear shifter;
step S2: the worm is in transmission connection with the locking gear, so that the blocking piece of the photoelectric sensor at the unlocking position and the locking gear rotate synchronously;
step S3: when the locking gear drives the unlocking position photoelectric sensor separation blade to rotate, the unlocking position photoelectric sensor separation blade leaves the middle position of the unlocking position photoelectric sensor, so that the motor is controlled to stop by the microcontroller module positioned on the circuit board;
step S4: a control circuit positioned on the circuit board is controlled to start a motor positioned in the electronic gear shifter, and a locking cam positioned on the locking gear is controlled to rotate;
step S5: when the motor drives the locking cam located at the locking gear to rotate, the blocking piece of the photoelectric sensor at the locking position is triggered to rotate to trigger the photoelectric sensor at the locking position to send an electric signal to the motor, so that the motor is controlled to stop by the microcontroller module located on the circuit board, and the gear shifting rotating shaft is reset to a locking point.
The electronic gear shifter and the control method thereof have the advantages that the occupied space is small, the locking cam, the gear and the optical coupling blocking piece are integrated on the locking gear, the traditional cam locking structure is optimized on the original old structure, the stress of the gear shaft is only one direction in the locking state, the component force in other directions is not generated due to the stress, the structure is simpler and more reliable, the function of the gear shifter is not lost due to the reduction of the whole structure, and meanwhile, sufficient space is reserved for other parts of the whole vehicle to be arranged.
Drawings
Fig. 1A is a schematic diagram of a partial circuit structure of the gear sensor of the present invention.
Fig. 1B is a schematic diagram of a partial circuit structure of the gear sensor of the present invention.
Fig. 2 is a schematic circuit diagram of the unlocking and locking module of the present invention.
Fig. 3 is a schematic circuit diagram of the main connector of the present invention.
Fig. 4 is a schematic circuit diagram of the start switch interface of the present invention.
Fig. 5A is a schematic diagram of a partial circuit structure of the power management module of the present invention.
Fig. 5B is a schematic diagram of a partial circuit structure of the power management module of the present invention.
Fig. 6 is a schematic circuit diagram of the microcontroller module of the present invention.
Fig. 7 is a schematic circuit configuration diagram of the drive motor of the present invention.
Fig. 8 is a simulated initial state magnetic field profile of the magnet and hall sensor of the present invention.
Fig. 9 is a
Fig. 10 is a simulated
Detailed Description
The invention discloses an electronic gear shifter and a control method of the electronic gear shifter, and the specific implementation mode of the invention is further described in combination with the preferred embodiment.
The locking structure, the locking mechanism, the self-locking structure, the self-locking mechanism and the like which are possibly related to the various embodiments of the invention are the same concept and are not distinguished.
Referring to fig. 1A and 1B of the drawings, there are shown, respectively, part of the circuit configuration of the gear sensor of the present invention; FIG. 2 illustrates a circuit configuration of the unlocking and locking module of the present invention; fig. 3 shows a circuit configuration of the main connector of the present invention; FIG. 4 illustrates the circuit configuration of the start switch interface of the present invention; fig. 5A and 5B respectively show a partial circuit configuration of a power management module of the present invention; fig. 6 shows a circuit configuration of a microcontroller module of the invention; fig. 7 shows a circuit configuration of a driving motor of the present invention; FIG. 8 illustrates a simulated initial state magnetic field distribution for a magnet and Hall sensor of the present invention; FIG. 9 shows a
Preferred embodiments.
Preferably, referring to fig. 1A to 10 of the drawings, the present invention discloses an electronic shifter comprising a shift rotating shaft, a lock gear, a motor, a worm, an unlock position photosensor, a lock position photosensor and a circuit board, wherein:
the motor in the electronic gear shifter is controlled to be started by a control circuit in the circuit board (a user starts a vehicle and presses a key starting switch, the whole vehicle is powered on, and the electronic gear shifter receives a whole vehicle unlocking signal);
the worm is in transmission connection with the locking gear, so that the blocking piece of the photoelectric sensor at the unlocking position and the locking gear rotate synchronously;
when the locking gear drives the unlocking position photoelectric sensor separation blade to rotate, the unlocking position photoelectric sensor separation blade is separated from the middle position of the unlocking position photoelectric sensor, so that the motor is controlled to stop by a microcontroller module located in the circuit board (the unlocking position photoelectric sensor signal triggers and is transmitted to a motor stop signal after being processed by the microcontroller module of the circuit board);
the motor in the electronic gear shifter is controlled and started by the control circuit on the circuit board (when the whole vehicle is flameout, a user presses the one-key starting switch again, the whole vehicle is powered off, and the electronic gear shifter receives a locking signal);
causing controlled rotation of the locking cam at the locking gear;
when the motor drives the locking cam positioned on the locking gear to rotate, the blocking piece of the photoelectric sensor at the locking position is made to rotate to trigger the photoelectric sensor at the locking position to generate an electric signal, so that the motor is controlled to stop by the microcontroller module positioned on the circuit board (the electric signal of the photoelectric sensor at the locking position is processed by the microcontroller module to send a motor rotation stop signal), and the gear shifting rotating shaft is further made to reset to a locking point.
Further, the electronic gear shifter further comprises a gear, and the locking cam, the gear and the optical coupling catch are all integrated with the locking gear.
Further, the locking cam is in a sector concentric circle shape.
Further, the locking point is stressed in a point contact mode.
Further, the (control circuit of the) circuit board comprises a microcontroller module, a power management module, an unlocking and locking module and a plurality of gear sensors, wherein:
the microcontroller module comprises a main control chip U4;
the unlocking and locking module comprises an unlocking unit and a locking unit, wherein:
the pin 27 of the main control chip U4 is connected to the BLK _ REL end of the unlocking unit;
pin 56 of the main control chip U4 is connected to the BLK _ LOCK end of the locking unit;
a No. 40 pin of the main control chip U4 is connected to a REL _ DTC end of the unlocking unit;
the pin No. 41 of the main control chip U4 is connected to the LOCK _ DTC section of the locking unit;
a pin No. 42 of the main control chip U4 is connected to a WAKEUP _ mes end of the power management module;
a pin 57 of the main control chip U4 is connected to the CPU _ SLEEP terminal of the power management module;
the No. 1 pin of the main control chip U4 is connected to a NETURAL end of one of the gear sensors;
a No. 10 pin of the main control chip U4 is connected to a NETURAL _ B end of one of the gear sensors;
a pin No. 11 of the main control chip U4 is connected to the FWD _ M _ B end of one of the gear sensors;
the No. 12 pin of the main control chip U4 is based on the FWD _ M end of one of the gear sensors;
a pin No. 28 of the main control chip U4 is connected to the FWD end of one of the gear sensors;
a pin No. 29 of the main control chip U4 is connected to the FWD _ B end of one of the gear sensors;
a pin No. 51 of the main control chip U4 is connected to the RVS _ B end of one of the gear sensors;
a pin No. 55 of the main control chip U4 is connected to the RVS end of one of the gear sensors;
a pin No. 58 of the main control chip U4 is connected to the RVS _ M _ B end of one of the gear sensors;
a pin 59 of the main control chip U4 is connected to the RVS _ M end of one of the gear sensors;
a pin No. 38 of the main control chip U4 is connected to a VBAT _ mes end of the power management module;
and a No. 43 pin of the main control chip U4 is connected to a 5V _ mes end of the power management module.
Further, the microcontroller module further comprises a DEBUG unit DEBUG1, wherein:
the No. 14 pin of the main control chip U4 is connected with the No. 2 pin of the
the No. 17 pin of the main control chip U4 is connected with the No. 3 pin of the
the No. 18 pin of the main control chip U4 is connected with the No. 4 pin of the
the No. 19 pin of the main control chip U4 is connected with the No. 5 pin of the
pin number 26 of the main control chip U4 is connected to pin
pin No. 20 of the main control chip U4 is connected to pin No. 7 of the
Further, the power management module includes a power management chip U8, wherein:
the No. 6 pin of the master control chip U4 is connected to the No. 9 pin of the power management chip U8;
the No. 7 pin of the master control chip U4 is connected to the No. 10 pin of the power management chip U8;
the No. 8 pin of the master control chip U4 is connected to the No. 3 pin of the power management chip U8;
the No. 14 pin of the master control chip U4 is connected to the No. 20 pin of the power management chip U8;
the No. 16 pin of the master control chip U4 is connected to the No. 8 pin of the power management chip U8;
the No. 62 pin of the master control chip U4 is connected to the No. 7 pin of the power management chip U8;
the pin 63 of the master chip U4 is connected to the
Further, the circuit board 17 further includes a driving motor module, and the driving motor module includes a driving motor chip U12, wherein:
the No. 36 pin of the main control chip U4 is connected with the No. 15 pin of the driving motor chip U12;
the No. 37 pin of the main control chip U4 is connected with the No. 1 pin of the driving motor chip U12;
the No. 44 pin of the main control chip U4 is connected with the No. 5 pin of the driving motor chip U12;
the No. 45 pin of the main control chip U4 is connected with the No. 16 pin of the driving motor chip U12;
the No. 46 pin of the main control chip U4 is connected with the No. 6 pin of the driving motor chip U12;
the No. 47 pin of the main control chip U4 is connected with the No. 3 pin of the driving motor chip U12;
and the No. 48 pin of the main control chip U4 is connected to the No. 2 pin of the driving motor chip U12.
Further, the circuit board further comprises an activation switch interface and a main connector.
The embodiment also discloses an electronic gear shifter control method, which adopts the electronic gear shifter and comprises the following steps:
step S1: a control circuit positioned on the circuit board is controlled to start a motor positioned inside the electronic gear shifter;
step S2: the worm is in transmission connection with the locking gear, so that the blocking piece of the photoelectric sensor at the unlocking position and the locking gear rotate synchronously;
step S3: when the locking gear drives the unlocking position photoelectric sensor separation blade to rotate, the unlocking position photoelectric sensor separation blade leaves the middle position of the unlocking position photoelectric sensor, so that the motor is controlled to stop by the microcontroller module positioned on the circuit board;
step S4: a control circuit positioned on the circuit board is controlled to start a motor positioned in the electronic gear shifter, and a locking cam positioned on the locking gear is controlled to rotate;
step S5: when the motor drives the locking cam located at the locking gear to rotate, the blocking piece of the photoelectric sensor at the locking position is triggered to rotate to trigger the photoelectric sensor at the locking position to send an electric signal to the motor, so that the motor is controlled to stop by the microcontroller module located on the circuit board, and the gear shifting rotating shaft is reset to a locking point.
Further, the electronic gear shifter further comprises a gear, and the locking cam, the gear and the optical coupling catch are all integrated with the locking gear.
Further, the locking cam is in a sector concentric circle shape.
Further, the locking point is stressed in a point contact mode.
Further, the (control circuit of the) circuit board comprises a microcontroller module, a power management module, an unlocking and locking module and a plurality of gear sensors, wherein:
the microcontroller module comprises a main control chip U4;
the unlocking and locking module comprises an unlocking unit and a locking unit, wherein:
the pin 27 of the main control chip U4 is connected to the BLK _ REL end of the unlocking unit;
pin 56 of the main control chip U4 is connected to the BLK _ LOCK end of the locking unit;
a No. 40 pin of the main control chip U4 is connected to a REL _ DTC end of the unlocking unit;
the pin No. 41 of the main control chip U4 is connected to the LOCK _ DTC section of the locking unit;
a pin No. 42 of the main control chip U4 is connected to a WAKEUP _ mes end of the power management module;
a pin 57 of the main control chip U4 is connected to the CPU _ SLEEP terminal of the power management module;
the No. 1 pin of the main control chip U4 is connected to a NETURAL end of one of the gear sensors;
a No. 10 pin of the main control chip U4 is connected to a NETURAL _ B end of one of the gear sensors;
a pin No. 11 of the main control chip U4 is connected to the FWD _ M _ B end of one of the gear sensors;
the No. 12 pin of the main control chip U4 is based on the FWD _ M end of one of the gear sensors;
a pin No. 28 of the main control chip U4 is connected to the FWD end of one of the gear sensors;
a pin No. 29 of the main control chip U4 is connected to the FWD _ B end of one of the gear sensors;
a pin No. 51 of the main control chip U4 is connected to the RVS _ B end of one of the gear sensors;
a pin No. 55 of the main control chip U4 is connected to the RVS end of one of the gear sensors;
a pin No. 58 of the main control chip U4 is connected to the RVS _ M _ B end of one of the gear sensors;
a pin 59 of the main control chip U4 is connected to the RVS _ M end of one of the gear sensors;
a pin No. 38 of the main control chip U4 is connected to a VBAT _ mes end of the power management module;
and a No. 43 pin of the main control chip U4 is connected to a 5V _ mes end of the power management module.
Further, the microcontroller module further comprises a DEBUG unit DEBUG1, wherein:
the No. 14 pin of the main control chip U4 is connected with the No. 2 pin of the
the No. 17 pin of the main control chip U4 is connected with the No. 3 pin of the
the No. 18 pin of the main control chip U4 is connected with the No. 4 pin of the
the No. 19 pin of the main control chip U4 is connected with the No. 5 pin of the
pin number 26 of the main control chip U4 is connected to pin
pin No. 20 of the main control chip U4 is connected to pin No. 7 of the
Further, the power management module includes a power management chip U8, wherein:
the No. 6 pin of the master control chip U4 is connected to the No. 9 pin of the power management chip U8;
the No. 7 pin of the master control chip U4 is connected to the No. 10 pin of the power management chip U8;
the No. 8 pin of the master control chip U4 is connected to the No. 3 pin of the power management chip U8;
the No. 14 pin of the master control chip U4 is connected to the No. 20 pin of the power management chip U8;
the No. 16 pin of the master control chip U4 is connected to the No. 8 pin of the power management chip U8;
the No. 62 pin of the master control chip U4 is connected to the No. 7 pin of the power management chip U8;
the pin 63 of the master chip U4 is connected to the
Further, the circuit board further comprises a driving motor module, the driving motor module comprises a driving motor chip U12, wherein:
the No. 36 pin of the main control chip U4 is connected with the No. 15 pin of the driving motor chip U12;
the No. 37 pin of the main control chip U4 is connected with the No. 1 pin of the driving motor chip U12;
the No. 44 pin of the main control chip U4 is connected with the No. 5 pin of the driving motor chip U12;
the No. 45 pin of the main control chip U4 is connected with the No. 16 pin of the driving motor chip U12;
the No. 46 pin of the main control chip U4 is connected with the No. 6 pin of the driving motor chip U12;
the No. 47 pin of the main control chip U4 is connected with the No. 3 pin of the driving motor chip U12;
and the No. 48 pin of the main control chip U4 is connected to the No. 2 pin of the driving motor chip U12.
Further, the circuit board further comprises an activation switch interface and a main connector.
According to the various embodiments, the main operation processes of the electronic gear shifter and the control method thereof disclosed by the invention are explained as follows.
Specifically, this electron selector operation adopts the second order self-resetting formula, adopts the redundant structural design of 3D hall binary channels, and three keep off five positions, monostable use the finger to press head operating button during the operation, realize the gear and switch. Setting the gear sequence as DNR, and when the gear shifting condition is met, setting the default gear as N gear, pressing left to enter D gear, and pressing right to enter R gear; when the current gear is the D gear, the first-order pressing is performed to the right to enter the N gear, the second-order pressing is performed to the right to enter the R gear (at the moment, the left-pressing invalidity is still the D gear), the current gear is the R gear, the left-order pressing is performed to enter the N gear, and the left-pressing second-order pressing is performed to enter the D gear (at the moment, the right-pressing invalidity is still the R gear.
According to the various embodiments, the main working principle of the electronic gear shifter and the control method thereof disclosed by the invention is explained as follows.
Specifically, in the working process of the gear shifter, a user presses a gear shifting button at the front end, the gear shifting button is stressed to drive a gear shifting rotating shaft to rotate around a shaft center, and a bullet at the end part of the gear shifting rotating shaft moves along a moving track on a lower base to realize operation hand feeling and operation force. The gear function switching is realized by a magnet on the gear shifting rotating shaft and a linear Hall sensor on a circuit board, after a gear shifting knob rotates around an axis, the relative position of the magnet and the Hall sensor on the circuit board changes to cause magnetic flux change, the gear DNR switching is realized by Hall effect trigger signals, a first-order gear shifting signal is triggered when the gear shifting knob rotates by 6 degrees in theoretical design, and a second-order gear shifting signal is triggered when the gear shifting knob rotates by 12 degrees.
According to the various embodiments, the main functional modules of the electronic gear shifter and the control method thereof disclosed by the invention are explained as follows.
Specifically, the electronic gear shifter comprises a gear shifting rotating shaft, a locking gear, a motor, a worm, an unlocking position photoelectric sensor, a locking position photoelectric sensor and a circuit board. A user starts a vehicle and presses a key starting switch, the whole vehicle is powered on, an electronic gear shifter receives a whole vehicle unlocking signal, a control circuit located on a circuit board starts a motor located inside the gear shifter, the motor is transmitted to a locking gear through a worm, the locking gear starts to rotate, an unlocking position photoelectric sensor separation blade rotates together with the locking gear, the unlocking position photoelectric sensor in an initial state drives the unlocking position photoelectric sensor separation blade to rotate due to the locking gear, the unlocking position photoelectric sensor separation blade leaves the middle position of the unlocking position photoelectric sensor, and the unlocking position photoelectric sensor signal triggers a microcontroller module of the circuit board to process and then transmits a motor stopping signal. At the same time, the locking gear has rotated 180 °, the locking cam located on the locking gear leaves the locking point, the unlocking of the gear selector is completed, and the user can now perform gear shifting. The user presses a key starting switch once more when putting out a fire in whole car, the whole car falls the electricity, electronic selector receives the locking signal, the motor starts, it begins to rotate to drive the locking cam that is located locking gear, meanwhile, locking position photoelectric sensor separation blade rotation trigger locking position photoelectric sensor signal of telecommunication, locking position photoelectric sensor signal of telecommunication sends the motor stall signal through microcontroller module processing, the motor receives stop signal and no longer rotates, the pivot of shifting gets back to the locking point again, the selector is locked, because the auto-lock effect of worm and locking gear under this state, and the locking point atress is along pivot line footpath direction, the component that can make the gear shaft rotatory does not exist, the gear shaft is more stable.
According to the various embodiments, the main technical effects of the electronic gear shifter and the control method thereof disclosed by the invention are explained as follows.
Specifically, occupation space is little, with locking structure (locking cam), drive structure (locking gear), from returning on trigger structure (opto-coupler separation blade) is integrated to locking gear, and optimized traditional cam locking structure above original old structure, make under the locking state gear shaft atress only be one direction, the atress does not produce the component force above the other directions, the structure is succinct more reliable, overall structure's reduction does not make selector function disappearance, leave sufficient space for other parts of whole car simultaneously and arrange.
Furthermore, as a modified example of the above preferred embodiment, the locking mechanism is in a sector concentric circle shape, the locking position is point-contact stressed, no other directional component force is generated by the stress, the stress of the gear rotating shaft is single, and the safety and reliability are high. The gear shaft is integrated with a photoelectric position sensor trigger structure, a self-locking cam structure and a transmission gear structure.
It should be noted that, technical features such as specific types of resistors and capacitors related to the present patent application should be regarded as the prior art, specific structures, operation principles, control manners and spatial arrangement manners of the technical features may be adopted by conventional choices in the field, and should not be regarded as the points of the present patent, and further detailed descriptions of the present patent are not provided.
It will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.
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