Electric Parking Brake System

Abstract

The invention discloses an electrical parking braking system. The electrical parking braking system comprises an electrical automatic parking device, a control circuit driver, a vehicle braking pump, a key switch, a power supply, an air compressor and an air storage cylinder, wherein one end of the electrical automatic parking device is connected with the control circuit driver; the other end of the electrical automatic parking device is connected with the vehicle braking pump; one end of the control circuit driver is connected with the key switch; the other end of the control circuit driver is connected with the power supply; and the air compressor, the air storage cylinder and the electrical automatic parking device are connected with each other in sequence. The control circuit driver comprises a main CPU, a safety monitoring CPU, a motor driving and fault diagnosis protecting circuit, a memory, a clutch pedal position and acceleration sensor and a CAN interface, wherein the safety monitoring CPU communicates with the main CPU; the memory is connected and communicates with the motor driving and fault diagnosis protecting circuit; the clutch pedal position and acceleration sensor is connected with an input end of the main CPU; and the CAN interface is connected with an output end of the main CPU. The control circuit driver collects a parking related signal, and the electrical automatic parking device is controlled to realize a temporary parking braking function, a hill starting assisting function and an automatic parking function, respectively.

Description

technical field [0001] The invention relates to a hand brake system of a passenger car or a truck, in particular to an electric parking brake system. Background technique [0002] With the increasing application of automobile information technology, the problems exposed by the traditional handbrake system of trucks or buses are becoming more and more obvious. The pipeline connection is complicated, and it is necessary to connect the manual control valve with the relay valve for use; the manual control valve is easy to wear after a period of use, causing air leakage, thereby increasing the fuel consumption of the vehicle; repeatedly pulling the hand brake and releasing the brake when driving in the city and waiting for a red light , which increases the driver's operating strength; it is easy to slide when starting on a slope, and it is not easy to operate. [0003] Therefore urgently need to provide a kind of novel braking system of truck or passenger car to solve the above ...

AI Technical Summary

Problems solved by technology

[0002] With the increasing application of automobile information technology, the problems exposed by the traditional handbrake system of trucks or buses are becoming more and more obvious. The pipeline connection is complicated, and it is necessary to connect the manual control valve with the relay valve for use; the manual control valve is easy to wear after a period of use, causing air leakage, thereby increasing the fuel consumption of the vehicle; repeatedly pulling the hand brake and releasing the brake when driving in the city and waiting for a red light , increasing the driver's operating strength; it is easy to slide when starting on a slope, and it is not easy to operate

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