An electronic shift system for safe driving

Abstract

The invention relates to an electronic shifting system for safe driving, which includes an automatic transmission control unit TCU, a shifter control unit GSM that sends the driver's requested gear to the CAN bus; and an actuator control unit that controls the action of the actuator Unit GBC, the actuator control unit GBC also receives the gear position of the shift shaft fed back by the actuator position sensor; by judging whether the actuator position sensor is faulty, whether it is in limphome mode, and whether the current vehicle speed meets the vehicle speed high The conditions are integrated to realize the control of the transmission. The electronic shifting function is realized through the control among the coordinated shifter control unit (GSM), automatic transmission control unit (TCU), and actuator control unit (GBC). In the case of failure of one or more control units, All can ensure that the whole vehicle is in a reasonable gear, ensuring driving safety; it can effectively avoid damage to the automatic transmission caused by misoperation, and improve the service life of the transmission.

Description

technical field [0001] The invention relates to an electronic shifting system for realizing safe driving. Background technique [0002] In the mechanical shift mechanism, the driver moves the ordinary shift lever through the mechanically connected shift zipper to drive the shift shaft of the automatic transmission to rotate, thereby realizing the four gears of P, R, N, and D. switch. With the improvement of living standards, more and more people hope to use advanced technology to assist the driving process, thereby improving driving safety and reducing the requirements for driving skills. For example, automatic parking, automatic passage through narrow roads, automatic driving and other technologies, and the premise of the application of these technologies is that the vehicle has an electronic shift function, which can realize automatic switching between P, R, N, and D gears. However, in the mechanical shifting mechanism, the mechanical connection between the shift lever a...

AI Technical Summary

Problems solved by technology

In the mechanical shift mechanism, the mechanical connection between the shift lever and the shift shaft can only be avoided by the driver subjectively, and cannot be fundamentally eliminated.

The mechanical shift mechanism is adopted. In order to ensure the movement range of the ordinary shift lever, the design of the shift lever will occupy a large space in the center console, which is not conducive to the diversified design of the center console; when the vehicle has been started , does not have anti-theft function

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