阅读说明：本技术 一种基于霍尔传感器的atm汽车转换挡位置检测系统及其控制方法 (Hall sensor based ATM automobile switching gear position detection system and control method thereof ) 是由 王庆 李如涛 于 2020-12-31 设计创作，主要内容包括：本发明提供的一种基于霍尔传感器的ATM汽车转换挡位置检测系统及其控制方法；包括换挡电机、挂挡电机、换挡轴、霍尔传感器、TCU,所述换挡轴与换挡电机和挂挡电机连接,通过换挡电机调节其档位,通过挂挡电机锁定档位,换挡轴的另一端固定安装有永磁体,霍尔传感器安装换挡轴的轴线上,且在永磁体的一端,霍尔传感器通过信号处理电路将换挡轴的转动信号传输到TCU。本发明以电磁感应原理的控制方式检测汽车档位转换位置变化,避免了传感器摩擦损耗而带来的接触不良,增加感测精度；提高了传感器使用寿命,减少了故障及维修更换频率。(The invention provides an ATM automobile switching gear position detection system based on a Hall sensor and a control method thereof; including gear shift motor, the motor of putting into gear, the axle of shifting a gear, hall sensor, TCU, the axle of shifting a gear is connected with gear shift motor and the motor of putting into gear, adjusts its gear through gear shift motor, locks the gear through the motor of putting into gear, and the other end fixed mounting of the axle of shifting a gear has the permanent magnet, and on hall sensor installation axis of the axle of shifting a gear, and in the one end of permanent magnet, hall sensor passes through signal processing circuit and transmits the rotation signal of the axle of shifting a gear to TCU. The invention detects the change of the gear shifting position of the automobile in a control mode of an electromagnetic induction principle, avoids poor contact caused by friction loss of a sensor and increases sensing precision; the service life of the sensor is prolonged, and the failure and the maintenance and replacement frequency are reduced.)

1. The utility model provides a detection system is put to ATM car switching position based on hall sensor which characterized in that: including gear shift motor, the motor of putting into gear, the axle of shifting a gear, hall sensor, TCU, the axle of shifting a gear is connected with gear shift motor and the motor of putting into gear, adjusts its gear through gear shift motor, locks the gear through the motor of putting into gear, and the other end fixed mounting of the axle of shifting a gear has the permanent magnet, and on hall sensor installation axis of the axle of shifting a gear, and in the one end of permanent magnet, hall sensor passes through signal processing circuit and transmits the rotation signal of the axle of shifting a gear to TCU.

2. An ATM vehicle park shift position sensing system based on hall sensors as claimed in claim 1, wherein: the signal processing circuit comprises an amplifier, a Hall sensor, the amplifier and a trigger are sequentially connected, the output end of the trigger is connected with the base electrode of a triode, the collector electrode of the triode is connected with the positive electrode of a power supply, the power supply adjusts the voltage through a voltage adjuster and then respectively inputs the adjusted voltage to the power supply ends of the Hall sensor, the amplifier and the trigger, and the grounding ends of the Hall sensor, the amplifier and the trigger, the emitting electrode of the triode and the negative electrode of the power supply are grounded.

3. The control method of the hall sensor based ATM vehicle change-over gear position detection system according to claim 1, wherein: the TCU controls the gear shifting motor to receive a gear shifting shaft position signal detected by the Hall sensor after gear shifting, judges whether gear shifting is in place or not, repeats the gear shifting step if the gear is not in place, and obtains a gear locking position of the gear shifting motor if the gear is in place.

4. The control method of the hall sensor based ATM vehicle change-over gear position detection system according to claim 3, wherein: and the TCU compares the voltage signal transmitted by the Hall sensor with a preset voltage value to judge whether the gear is in place.

5. The control method of the hall sensor based ATM vehicle change-over gear position detection system according to claim 3, wherein: and when the gear is not in place, the automobile clutch is in a slip state.

6. The control method of the hall sensor based ATM vehicle change-over gear position detection system according to claim 3, wherein: the TCU also detects whether a gear shifting shaft position signal detected by a Hall sensor is effective or not according to the running speed of the vehicle after the gear is locked.

7. The method for controlling a hall sensor based ATM shift position sensing system according to claim 6, wherein: and the TCU sends a fault signal to a reminding mechanism of the central console after judging whether the gear shifting shaft position signal detected by the Hall sensor is effective.

8. The method for controlling a hall sensor based ATM shift position sensing system according to claim 7, wherein: the reminding mechanism is a buzzer connected with the controller.

Technical Field

The invention relates to an ATM automobile switching gear position detection system based on a Hall sensor and a control method thereof.

Background

The AMT automobile conversion gear on the market uses the contact sensing structure sensor, because the contact sensing structure sensor can produce wearing and tearing after the live time for a long time, has defects such as contact failure, sensing precision are low, measuring error is big, not only sensor life end still can lead to the car not smooth and easy enough when the conversion gear, and serious person damages vehicle spare part even and causes the traffic accident.

Disclosure of Invention

In order to solve the technical problem, the invention provides an ATM automobile shifting gear position detection system based on a Hall sensor and a control method thereof.

The invention is realized by the following technical scheme.

The invention provides an ATM automobile switching gear position detection system based on a Hall sensor and a control method thereof; including gear shift motor, the motor of putting into gear, the axle of shifting a gear, hall sensor, TCU, the axle of shifting a gear is connected with gear shift motor and the motor of putting into gear, adjusts its gear through gear shift motor, locks the gear through the motor of putting into gear, and the other end fixed mounting of the axle of shifting a gear has the permanent magnet, and on hall sensor installation axis of the axle of shifting a gear, and in the one end of permanent magnet, hall sensor passes through signal processing circuit and transmits the rotation signal of the axle of shifting a gear to TCU.

The signal processing circuit comprises an amplifier, a Hall sensor, the amplifier and a trigger are sequentially connected, the output end of the trigger is connected with the base electrode of a triode, the collector electrode of the triode is connected with the positive electrode of a power supply, the power supply adjusts the voltage through a voltage adjuster and then respectively inputs the adjusted voltage to the power supply ends of the Hall sensor, the amplifier and the trigger, and the grounding ends of the Hall sensor, the amplifier and the trigger, the emitting electrode of the triode and the negative electrode of the power supply are grounded.

The TCU controls the gear shifting motor to receive a gear shifting shaft position signal detected by the Hall sensor after gear shifting, judges whether gear shifting is in place or not, repeats the gear shifting step if the gear is not in place, and obtains a gear locking position of the gear shifting motor if the gear is in place.

And the TCU compares the voltage signal transmitted by the Hall sensor with a preset voltage value to judge whether the gear is in place.

And when the gear is not in place, the automobile clutch is in a slip state.

The TCU also detects whether a gear shifting shaft position signal detected by a Hall sensor is effective or not according to the running speed of the vehicle after the gear is locked.

The TCU sends a fault signal to a reminding mechanism of the center console after judging whether a gear shifting shaft position signal detected by the Hall sensor is effective or not

The reminding mechanism is a buzzer connected with the controller.

The invention has the beneficial effects that: the change of the gear shifting position of the automobile is detected in a control mode of an electromagnetic induction principle, poor contact caused by friction loss of a sensor is avoided, and sensing precision is improved; the service life of the sensor is prolonged, and the failure and the maintenance and replacement frequency are reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the sensor signal processing circuitry of the present invention;

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

An ATM vehicle switching gear position detection system based on Hall sensors and a control method thereof; including gear shift motor, the motor of putting into gear, the axle of shifting a gear, hall sensor, TCU, the axle of shifting a gear is connected with gear shift motor and the motor of putting into gear, adjusts its gear through gear shift motor, locks the gear through the motor of putting into gear, and the other end fixed mounting of the axle of shifting a gear has the permanent magnet, and on hall sensor installation axis of the axle of shifting a gear, and in the one end of permanent magnet, hall sensor passes through signal processing circuit and transmits the rotation signal of the axle of shifting a gear to TCU.

The signal processing circuit comprises an amplifier, a Hall sensor, the amplifier and a trigger are sequentially connected, the output end of the trigger is connected with the base electrode of a triode, the collector electrode of the triode is connected with the positive electrode of a power supply, the power supply adjusts the voltage through a voltage adjuster and then respectively inputs the adjusted voltage to the power supply ends of the Hall sensor, the amplifier and the trigger, and the grounding ends of the Hall sensor, the amplifier and the trigger, the emitting electrode of the triode and the negative electrode of the power supply are grounded.

The TCU controls the gear shifting motor to receive a gear shifting shaft position signal detected by the Hall sensor after gear shifting, judges whether gear shifting is in place or not, repeats the gear shifting step if the gear is not in place, and obtains a gear locking position of the gear shifting motor if the gear is in place.

And the TCU compares the voltage signal transmitted by the Hall sensor with a preset voltage value to judge whether the gear is in place.

And when the gear is not in place, the automobile clutch is in a slip state.

The TCU also detects whether a gear shifting shaft position signal detected by a Hall sensor is effective or not according to the running speed of the vehicle after the gear is locked.

And the TCU sends a fault signal to a reminding mechanism of the central console after judging whether the gear shifting shaft position signal detected by the Hall sensor is effective. The TCU determines whether gear shifting is in place or not according to the vehicle speed range of each gear, if the gear shifting shaft position signal detected by the TCU is effective, but the vehicle speed is not in the gear vehicle speed range, the gear shifting shaft position signal is judged to be invalid, the Hall sensor fails to reach the reminding mechanism, and the controller controls the buzzer to give out buzzing sound to remind a driver. .

The invention uses Hall sensor to detect shift change position, a permanent magnet is fixed on the shift shaft in the detection magnetic field of the Hall sensor, a Hall semiconductor chip constant current I passes through the chip from A to B in the magnetic field. Under the action of the lorentz force, the electron current of I is deflected to one side when passing through the hall semiconductor, causing the sheet to generate a potential difference in the CD direction, which is the hall voltage. The hall voltage varies with the change of the magnetic field, the stronger the magnetic field, the higher the voltage, the weaker the magnetic field, the lower the voltage, the small hall voltage value, usually only a few millivolts, but amplified by an amplifier in the integrated circuit to be enough to output a stronger signal.

The Hall sensor obtains potential signals through a changing magnetic field, obtains different output voltage signals after the potential signals are amplified by the circuit amplifier, sends the voltage signals into the TCU for feedback, and judges whether the shifting position is in place or not through operation and identification of the TCU chip.