Electronic parking control system of electric motor coach and control method of electronic parking control system

Abstract

The invention provides an electronic parking control system of an electric motor coach. The electronic parking control system comprises a single chip microcomputer, a hand braking switch, an automatic parking switch, an accelerator pedal, a braking pedal, a vehicle speed sensor, an angle sensor, a front axle solenoid valve, a rear axle solenoid valve, a hand braking solenoid valve, a parking indication lamp and an automatic parking indication lamp, wherein the output ends of the hand braking switch, the automatic parking switch, the accelerator pedal, the braking pedal, the vehicle speed sensor and the angle sensor are connected with the input end of the single chip microcomputer; the output end of the single chip microcomputer is connected with the front axle solenoid valve, the rear axle solenoid valve, the hand braking solenoid valve, the parking indication lamp and the automatic parking indication lamp. The invention further discloses a control method of the electronic parking control system of the electric motor coach. The functions of decelerating and braking, parking on a slope, automatically parking and the like of the electric motor coach can be reliably realized, and a slope sliding or slipping phenomenon can be prevented; the labor intensity of a driver is reduced, and the safety, controllability and driving comfort of the vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicle control, in particular to an electronic parking control system for an electric passenger car and a control method thereof. Background technique [0002] At present, the brake devices of passenger cars and heavy-duty vehicles adopt the air brake method. Among them, the foot brake is to generate the driving braking force by inflating the parking brake air chambers of the left and right wheels of the front and rear axles, and the left and right wheels of the front and rear axles are parked. The vehicle brake air chamber is exhausted to release the parking brake force; the hand brake is to generate the parking brake force by inflating the parking brake air chamber of the left and right wheels of the rear axle, and release the parking brake air chamber of the left and right wheels of the rear axle. Parking brake force. The traditional air brake device uses a manual joystick to control the a...

AI Technical Summary

Problems solved by technology

The traditional air brake device uses a manual joystick to control the air circuit. The operation process is relatively cumbersome, and the parking brake operation requires a lot of force. Frequent operation increases the labor intensity of the driver. If the driver stops If you forget to pull up the parking brake handle, the vehicle will not be able to apply the parking brake, and there is a risk of the car rolling away when parking on a slope

After parking on a slope, in order to avoid the vehicle slipping when starting, the vehicle must be started first, and the hand brake can only be released when the vehicle has torque output. Inexperienced drivers are prone to slipping

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