阅读说明：本技术 线控换挡器及汽车 (Drive-by-wire selector and car ) 是由 谭火南 梁建刚 于 2019-04-11 设计创作，主要内容包括：本发明提供一种线控换挡器及汽车,该线控换挡器包括底座、换挡杆及多个微动开关,多个所述微动开关安装在所述底座上,所述底座固定在车身上,所述换挡杆转动连接在所述底座上,所述换挡杆包括操纵臂及换挡臂,所述操纵臂的下端连接在所述换挡臂的中部,所述换挡臂的下表面设置有多个触点,多个所述触点分布于所述换挡杆的旋转轴线的前侧及后侧,每一所述触点对应设置有一所述微动开关以触发对应的换挡信号。该线控换挡器,采用了一种更简单、可靠的方式触发换挡信号,结构更小,重量更轻。(The invention provides a wire-controlled gear shifter and an automobile, wherein the wire-controlled gear shifter comprises a base, a gear shifting lever and a plurality of micro switches, the micro switches are arranged on the base, the base is fixed on an automobile body, the gear shifting lever is rotationally connected to the base, the gear shifting lever comprises an operating arm and a gear shifting arm, the lower end of the operating arm is connected to the middle of the gear shifting arm, a plurality of contacts are arranged on the lower surface of the gear shifting arm, the contacts are distributed on the front side and the rear side of the rotation axis of the gear shifting lever, and each contact is correspondingly provided with one micro switch to trigger a corresponding gear shifting signal. The shift-by-wire shifter adopts a simpler and reliable mode to trigger a shift signal, and has a smaller structure and lighter weight.)

1. The utility model provides a drive-by-wire selector, its characterized in that includes base, gear level and a plurality of micro-gap switch, a plurality of micro-gap switch installs on the base, the base is fixed on the automobile body, the gear level rotates to be connected on the base, the gear level includes control arm and gear level, the lower extreme of control arm is connected the middle part of gear level, the lower surface of gear level is provided with a plurality of contacts, and a plurality of the contact distributes in the front side and the rear side of the rotation axis of gear level, each the contact correspond be provided with one micro-gap switch is in order to trigger corresponding gear shift signal.

2. The shift-by-wire of claim 1, wherein the lever arm, when pushed forward, drives the shift lever to rotate counterclockwise such that a contact located forward of the rotational axis of the shift lever presses the corresponding microswitch to trigger a corresponding shift signal;

the operating arm drives the gear shifting lever to rotate clockwise when pushed backwards, so that a contact point positioned on the rear side of the rotation axis of the gear shifting lever presses the corresponding microswitch to trigger a corresponding gear shifting signal;

the microswitch closer to the rotation axis of the shift lever is pressed earlier when the shift lever is rotated counterclockwise;

the microswitch closer to the rotational axis of the shift lever is pressed earlier when the shift lever is rotated clockwise.

3. The by-wire shifter of claim 1, wherein the axis of rotation of the shift lever is located at a mid-position of the shift arm.

4. The shift by wire of claim 1, wherein an adapter ring is disposed at a middle position of the shift arm, a lower end of the operating arm is connected to an outer portion of the adapter ring, and the shift lever is rotatably connected to the base through a rotating shaft inserted into the adapter ring.

5. The shift-by-wire of claim 4, further comprising a return device by which the shift lever returns to a steady state position after the external force acting on the operating arm disappears;

in the steady state position of the shift lever, the shift arm remains horizontal and all of the microswitches are not depressed to trigger.

6. The shift by wire of claim 5, wherein the return device comprises a guide block, a return spring, a pin, and a stop block, the stop block having an upwardly opening V-shaped groove comprising a front slope and a rear slope joined at the bottom, the guide block being formed below the adapter ring, the guide block having a downwardly opening guide groove, the return spring being disposed in the guide groove, the upper end of the pin abutting the lower end of the return spring, the lower end of the pin abutting the V-shaped groove;

in the steady state position of the shift lever, the lower end of the pin abuts against the bottommost portion of the V-shaped groove;

when the operating arm is pushed forwards, the pin ascends along the rear slope from the bottommost part of the V-shaped groove and extends into the guide groove to compress the return spring, after the external force acting on the operating arm disappears, the pin extends out of the guide groove by virtue of the return force of the return spring, and the pin returns to the bottommost part of the V-shaped groove, so that the gear shifting lever is driven to return to the stable position;

when the operating arm is pushed backwards, the pin ascends along the front slope surface from the bottommost part of the V-shaped groove and extends into the guide groove to compress the return spring, after the external force acting on the operating arm disappears, the pin extends out of the guide groove by virtue of the restoring force of the return spring, and the pin returns to the bottommost part of the V-shaped groove, so that the gear shifting lever is driven to return to the stable position.

7. The by-wire shifter of claim 5 wherein a plurality of the microswitches are aligned in a straight line;

in the steady state position of the shift lever, the contact points located on the front side of the rotation axis of the shift lever are closer to the corresponding micro switch as the contact points are closer to the rotation axis of the shift lever;

in the steady-state position of the shift lever, the plurality of contact points located on the rear side of the rotational axis of the shift lever are closer to the corresponding micro switch as the contact points are closer to the rotational axis of the shift lever.

8. The by-wire shifter of claim 1, wherein two of the micro-switches adjacent to the rotation axis of the shift lever are vertically slidable along the pedestal, and a spring is provided below the two micro-switches adjacent to the rotation axis of the shift lever, an upper end of the spring abuts against a lower end of the micro-switch, and a lower end of the spring abuts against the pedestal.

9. The by-wire shifter of any one of claims 1-8, comprising four of the microswitches, wherein a lower surface of the shift arm is provided with four of the contacts, two of the contacts being located on a front side of a rotational axis of the shift lever and two of the contacts being located on a rear side of the rotational axis of the shift lever;

triggering a first type of shift signal when only the microswitch located on the front side of the rotational axis of the shift lever, which is closest to the rotational axis of the shift lever, is pressed;

triggering a second type of shift signal when the two microswitches located on the front side of the rotation axis of the shift lever are pressed;

triggering a third shift signal when only the microswitch located on the rear side of the rotational axis of the shift lever that is closest to the rotational axis of the shift lever is pressed;

a fourth shift signal is triggered when the two microswitches located on the rear side of the rotational axis of the shift lever are pressed.

10. An automobile characterized by comprising a shift by wire control according to any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of automatic transmissions, and particularly relates to a wire-controlled gear shifter and an automobile.

Background

Along with the development of automobile technology, customers have higher and higher requirements on driving automation and science and technology, high-tech configuration is more and more popular, especially, the development of shift-by-wire is faster and faster, and not only European and American models carry the shift-by-wire with a high science and technology feeling, but also domestic brands of automobiles carry the shift-by-wire more and more.

In the shift-by-wire shifter, a shift lever is pushed to select a shift position, and the shifter needs to recognize a driver's intention to shift gears and correctly and reliably transmit a shift signal to a TCU (Transmission Control Unit).

A lot of existing vehicle types on the market carry shift-by-wire and have a lot of gear shifting types. And is typically a BMW or galloping shift-by-wire type. In the existing shift-by-wire modes, the Hall sensors are adopted for identifying gear signals, and the Hall sensors sense the change of a magnetic field to identify the gear signals.

The Hall sensor is high in cost and complex in structure, and the line control gear shifter using the Hall sensor is complex in structure, large in size and heavy in weight.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: to the problem that the existing drive-by-wire gear shifter using a Hall sensor is complex in structure, a drive-by-wire gear shifter and an automobile are provided.

In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides a shift-by-wire shifter, including a base, a shift lever and a plurality of microswitches, where the microswitches are mounted on the base, the base is fixed on a vehicle body, the shift lever is rotatably connected to the base, the shift lever includes an operation arm and a shift arm, a lower end of the operation arm is connected to a middle portion of the shift arm, a lower surface of the shift arm is provided with a plurality of contacts, the contacts are distributed on a front side and a rear side of a rotation axis of the shift lever, and each contact is correspondingly provided with one of the microswitches to trigger a corresponding shift signal.

Optionally, the lever arm, when pushed forward, drives the shift lever to rotate counterclockwise such that a contact located forward of the rotational axis of the shift lever presses the corresponding microswitch to trigger the corresponding shift signal;

the operating arm drives the gear shifting lever to rotate clockwise when pushed backwards, so that a contact point positioned on the rear side of the rotation axis of the gear shifting lever presses the corresponding microswitch to trigger a corresponding gear shifting signal;

the microswitch closer to the rotation axis of the shift lever is pressed earlier when the shift lever is rotated counterclockwise;

the microswitch closer to the rotational axis of the shift lever is pressed earlier when the shift lever is rotated clockwise.

Optionally, the rotational axis of the shift lever is located at a middle position of the shift arm.

Optionally, an adapter ring is disposed at a middle position of the shift arm, a lower end of the operating arm is connected to an outside of the adapter ring, and the shift lever is rotatably connected to the base through a rotating shaft inserted into the adapter ring.

Optionally, the shift-by-wire shifter further comprises a return device, and the shift lever returns to the steady-state position by the return device after the external force acting on the operating arm disappears;

in the steady state position of the shift lever, the shift arm remains horizontal and all of the microswitches are not depressed to trigger.

Optionally, the return device includes a guide block, a return spring, a pin, and a limit block, the limit block has a V-shaped groove with an upward opening, the V-shaped groove includes a front slope surface and a rear slope surface connected at the bottom, the guide block is formed below the adapter ring, the guide block has a guide groove with a downward opening, the return spring is disposed in the guide groove, the upper end of the pin abuts against the lower end of the return spring, and the lower end of the pin abuts against the V-shaped groove;

in the steady state position of the shift lever, the lower end of the pin abuts against the bottommost portion of the V-shaped groove;

when the operating arm is pushed forwards, the pin ascends along the rear slope from the bottommost part of the V-shaped groove and extends into the guide groove to compress the return spring, after the external force acting on the operating arm disappears, the pin extends out of the guide groove by virtue of the return force of the return spring, and the pin returns to the bottommost part of the V-shaped groove, so that the gear shifting lever is driven to return to the stable position;

when the operating arm is pushed backwards, the pin ascends along the front slope surface from the bottommost part of the V-shaped groove and extends into the guide groove to compress the return spring, after the external force acting on the operating arm disappears, the pin extends out of the guide groove by virtue of the restoring force of the return spring, and the pin returns to the bottommost part of the V-shaped groove, so that the gear shifting lever is driven to return to the stable position.

Optionally, a plurality of said microswitches are arranged in a line;

in the steady state position of the shift lever, the contact points located on the front side of the rotation axis of the shift lever are closer to the corresponding micro switch as the contact points are closer to the rotation axis of the shift lever;

in the steady-state position of the shift lever, the plurality of contact points located on the rear side of the rotational axis of the shift lever are closer to the corresponding micro switch as the contact points are closer to the rotational axis of the shift lever.

Optionally, two of the microswitches adjacent to the rotation axis of the shift lever are slidable up and down along the base, and a spring is disposed below the two microswitches adjacent to the rotation axis of the shift lever, an upper end of the spring abuts against a lower end of the microswitch, and a lower end of the spring abuts against the base.

Optionally, the by-wire shifter comprises four said micro-switches, a lower surface of the shift arm is provided with four said contacts, two said contacts are located on a front side of a rotational axis of the shift lever, two said contacts are located on a rear side of the rotational axis of the shift lever;

triggering a first type of shift signal when only the microswitch located on the front side of the rotational axis of the shift lever, which is closest to the rotational axis of the shift lever, is pressed;

triggering a second type of shift signal when the two microswitches located on the front side of the rotation axis of the shift lever are pressed;

triggering a third shift signal when only the microswitch located on the rear side of the rotational axis of the shift lever that is closest to the rotational axis of the shift lever is pressed;

a fourth shift signal is triggered when the two microswitches located on the rear side of the rotational axis of the shift lever are pressed.

According to the shift-by-wire device provided by the embodiment of the invention, the lower surface of the shift arm is provided with a plurality of contacts which are distributed on the front side and the rear side of the rotation axis of the shift lever, and each contact is correspondingly provided with a microswitch for triggering a corresponding shifting signal. Therefore, the driver's gear-shifting intention is identified by triggering one or a group of micro switches, the traditional Hall sensor form is eliminated, and a simpler and more reliable mode is adopted to trigger the gear-shifting signal. The drive-by-wire shifter is smaller in structure and lighter in weight. Can adapt to complex environment, can be better resist high low temperature and strike. And the device has the advantages of low cost, compact structure, arrangement space saving, high reliability and the like.

In another aspect, an embodiment of the invention further provides an automobile, which comprises the shift-by-wire device.

Drawings

Fig. 1 is a schematic view of a shift-by-wire shifter provided by an embodiment of the present invention;

fig. 2 is a schematic view of a return device of a shift-by-wire shifter according to another embodiment of the present invention connected to a shift lever.

The reference numbers in the drawings of the specification are as follows:

1. a base;

2. a shift lever; 21. an operating arm; 22. a shift arm; 221. a transfer ring; 23. a contact;

3. a microswitch;

4. a rotating shaft;

5. a return device; 51. a guide block; 511. a guide groove; 52. a return spring; 53. a pin; 54. a limiting block; 541. a V-shaped groove; 5411. a front slope surface; 5412. a rear slope surface;

6. a spring.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the shift-by-wire shifter provided by an embodiment of the present invention includes a base 1, a shift lever 2, and a plurality of micro switches 3, wherein the plurality of micro switches 3 are mounted on the base, the base 1 is fixed on a vehicle body, and the shift lever 2 is rotatably connected to the base 1.

The gear shifting lever 2 comprises an operating arm 21 and a gear shifting arm 22, the lower end of the operating arm 21 is connected to the middle of the gear shifting arm 22, a plurality of contacts 23 are arranged on the lower surface of the gear shifting arm 22, the plurality of contacts 23 are distributed on the front side and the rear side of the rotation axis of the gear shifting lever 2, and each contact 23 is correspondingly provided with one microswitch 3 to trigger a corresponding gear shifting signal.

Herein, the upper, lower, front and rear are the directions indicated by arrows in fig. 1, and are not intended to limit the actual installation direction of the shift-by-wire.

The operating arm 21, when pushed forward, drives the gear shift lever 2 to turn counterclockwise (with reference to the orientation shown in fig. 1) so that a contact 23 located on the front side of the rotational axis of the gear shift lever 2 presses the corresponding microswitch 3 to trigger the corresponding shift signal.

The operating arm 21, when pushed backwards, rotates the gear shift lever 2 clockwise, with reference to the orientation shown in fig. 1), so that a contact 23 located on the rear side of the rotational axis of the gear shift lever 2 presses the corresponding microswitch 3 to trigger the corresponding shift signal.

When the shift lever 2 is rotated counterclockwise, the microswitch 3 closer to the rotation axis of the shift lever 2 is pressed earlier. When the shift lever 2 is rotated clockwise, the microswitch 3 closer to the rotation axis of the shift lever 2 is pressed earlier.

The rotational axis of the shift lever 2 is located at a middle position of the shift arm 22. The operating arm 21 is vertically connected to an intermediate position of the shift arm 22.

In a preferred embodiment, an adapter ring 221 is disposed at a middle position of the shift arm 22, the lower end of the operating arm 21 is connected to the outside of the adapter ring 221, and the shift lever 2 is rotatably connected to the base 1 through a rotating shaft 4 inserted into the adapter ring 221.

In another embodiment, as shown in fig. 2, the shift by wire shifter further comprises a return device 5, and the shift lever 2 is returned to the steady position by the return device 5 after the external force acting on the operating arm 21 is removed. Thus, each time the operating arm 21 is operated, the gear shift lever 2 automatically returns to the steady position by releasing the hand.

In the steady-state position of the shift lever 2, the shift arm 22 remains horizontal and all the microswitches 3 are not pressed to trigger.

As shown in fig. 2, the return device 5 includes a guide block 51, a return spring 52, a pin 53 and a limit block 54, the limit block 54 has an upward opening V-shaped groove 541, the V-shaped groove 541 includes a front slope 5411 and a rear slope 5412 connected at the bottom, the guide block 51 is formed below the adapter ring 221, the guide block 51 has a downward opening guide groove 511, the return spring 52 is disposed in the guide groove 511, the upper end of the pin 53 abuts against the lower end of the return spring 52, and the lower end of the pin 53 abuts against the V-shaped groove 541.

In the steady state position of the shift lever 2, the lower end of the pin 53 abuts on the bottommost portion of the V-groove 541. When the operating arm 21 is pushed forward, the pin 53 ascends along the rear slope 5412 from the bottom of the V-shaped groove 541 and extends into the guide groove 511 to compress the return spring 52, and after the external force acting on the operating arm 21 disappears, the pin 53 extends out of the guide groove 511 by the return force of the return spring 52, and the pin 53 returns to the bottom of the V-shaped groove 541, thereby bringing the shift lever 2 back to the steady position. When the operating arm 21 is pushed backward, the pin 53 ascends along the front slope 5411 from the bottom of the V-shaped groove 541 and extends into the guide groove 511 to compress the return spring 52, and after the external force acting on the operating arm 21 disappears, the pin 53 extends out of the guide groove 511 by the return force of the return spring 52, and the pin 53 returns to the bottom of the V-shaped groove 541, thereby bringing the shift lever 2 back to the steady position.

In one embodiment, a plurality of said microswitches 3 are arranged in a straight line. In the steady-state position of the shift lever 2, the plurality of contact points 23 located on the front side of the rotational axis of the shift lever 2 are closer to the corresponding micro switch 3 as the contact points 23 closer to the rotational axis of the shift lever 2. In the steady-state position of the shift lever 2, the plurality of contact points 23 located on the rear side of the rotational axis of the shift lever 2 are closer to the corresponding micro switch 3 as the contact points 23 closer to the rotational axis of the shift lever 2 are. This has the advantage that the microswitch 3, which is closer to the rotational axis of the shift lever 2, is pressed earlier when the shift lever 2 is rotated counterclockwise. When the shift lever 2 is rotated clockwise, the microswitch 3 closer to the rotation axis of the shift lever 2 is pressed earlier. So that a plurality of contacts 23 located on the front side of the rotation axis of the gear shift lever 2 can press the corresponding microswitches 3 in sequence, whereby different shift signals are triggered by pressing one microswitch 3 or a combination of microswitches 3. Likewise, a plurality of contacts 23 located on the rear side of the rotational axis of the gear shift lever 2 can press the corresponding microswitches 3 in sequence, whereby different shift signals are triggered by pressing one microswitch 3 or a combination of microswitches 3.

In one embodiment, as shown in fig. 1, two of the microswitches 3 adjacent to the rotation axis of the shift lever 2 are slidable up and down along the base 1, a spring 6 is provided below the two microswitches 3 adjacent to the rotation axis of the shift lever 2, an upper end of the spring 6 abuts against a lower end of the microswitch 3, and a lower end of the spring 6 abuts against the base 1. The arrangement of the spring 6 enables the plurality of contacts 23 to press the corresponding micro-switches 3 in sequence from near to far, avoiding two of said micro-switches 3 adjacent to the rotation axis of said shift lever 2 to block further rotation of the shift lever 2.

In one embodiment, as shown in fig. 1, the by-wire shifter includes four microswitches 3, a lower surface of the shift arm 22 is provided with four contact points 23, two contact points 23 are located on a front side of a rotational axis of the shift lever 2, and two contact points 23 are located on a rear side of the rotational axis of the shift lever 2.

A first type of shift signal is triggered when only the microswitch 3 located on the front side of the rotational axis of the shift lever 2, which is closest to the rotational axis of the shift lever 2, is pressed.

When the two microswitches 3 located on the front side of the rotational axis of the gear shift lever 2 are pressed, a second type of shift signal is triggered.

A third shift signal is triggered when only the microswitch 3 located on the rear side of the rotational axis of the shift lever 2, which is closest to the rotational axis of the shift lever 2, is pressed.

A fourth shift signal is triggered when the two microswitches 3 located on the rear side of the rotational axis of the gear shift lever 2 are pressed.

The first gear shift signal, the second gear shift signal, the third gear shift signal and the fourth gear shift signal are selected from a P gear (parking gear) signal, a D gear (forward gear) signal, an R gear (reverse gear) signal and an N gear (neutral gear) signal. For example, the first shift signal is an R-range signal, the second shift signal is a P-range signal, the third shift signal is an N-range signal, and the fourth shift signal is a D-range signal. For another example, the first gear shift signal is an N-gear signal, the second gear shift signal is a D-gear signal, the third gear shift signal is an R-gear signal, and the fourth gear shift signal is a P-gear signal.

According to the shift-by-wire shifter provided by the embodiment of the invention, the shifting intention of a driver is identified by triggering one or a group of micro switches 3, the traditional Hall sensor mode is eliminated, and a simpler and more reliable mode is adopted to trigger a shifting signal. The drive-by-wire shifter is smaller in structure and lighter in weight. Can adapt to complex environment, can be better resist high low temperature and strike. And the device has the advantages of low cost, compact structure, arrangement space saving, high reliability and the like.

In addition, the embodiment of the invention also provides an automobile which comprises the drive-by-wire gear shifter of the embodiment.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.