Control system for actuating mechanism of gear shifter of unmanned automobile

Control system for actuating mechanism of gear shifter of unmanned automobile

  • CN 107,701,712 B
  • Filed: 08/30/2016
  • Issued: 10/01/2021
  • Est. Priority Date: 08/30/2016
  • Status: Active Grant
First Claim
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1. An unmanned vehicle shifter actuator control system, comprising:

  • the control system comprises a control module, a CAN bus module, a driving gear acquisition module, a gear shifter, a Hall sensor, an actuating mechanism motor, a digital-to-analog conversion module and an analog switch module;

    the control module receives a gear message signal sent by the vehicle and judges whether the vehicle is in an unmanned mode or not and judges the real-time state of the vehicle so as to realize seamless switching of the unmanned vehicle between the unmanned mode and a manual mode;

    if the vehicle is in the unmanned driving mode, the control module controls the motor of the actuating mechanism to realize PRND gear shifting according to the gear message signal and feeds the current gear acquired by the driving gear acquisition module back to the vehicle through the CAN bus module;

    if the vehicle is not in the unmanned driving mode, the gear shifter detects the current PRND gear position through the Hall sensor and sends a current PRND gear position signal to the control module, and the control module controls the motor of the actuating mechanism to realize PRND gear position switching;

    if the control module does not detect a signal sent by the CAN bus module after the preset time, controlling the motor of the actuating mechanism to switch the gear position to N gear;

    the unmanned vehicle shifter actuating mechanism further comprises;

    a synchronous belt transmission mechanism;

    the synchronous belt transmission mechanism comprises a first synchronous wheel, a second synchronous wheel and a synchronous belt, wherein the diameter of the second synchronous wheel is larger than that of the first synchronous wheel;

    the first synchronous wheel is connected with a transmission shaft of a motor of the actuating mechanism;

    a screw rod;

    the screw rod is connected with the second synchronous wheel;

    a nut;

    the screw rod is sleeved with the screw rod and can transversely move along with the rotation of the screw rod;

    the flexible shaft connecting structure is arranged on the nut;

    a fixed disc with the diameter larger than that of the second synchronizing wheel is arranged on the outer side of the second synchronizing wheel;

    the fixed disc is provided with a plurality of through holes;

    the infrared device is arranged at two ends of the circuit board;

    the infrared rays emitted by the infrared device can pass through the through hole;

    if the vehicle is in the unmanned driving mode, the control module converts the received vehicle message into a data signal, and the digital-to-analog conversion module receives the data signal, converts the data signal into an analog voltage signal and then transmits the analog voltage signal to the automobile engine management system;

    if the vehicle is not in the unmanned driving mode, the control module directly transmits the angle of the accelerator pedal to the automobile engine management system through the analog switch module.

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