Automatic parking braking device and control method

Abstract

An automatic parking braking device comprises a signal collecting module (3), a controller module (4) and an actuating module (5). The signal collecting module (3) and actuating module (5) are respectively and electrically connected with the controller module (4); the signal collecting module (3) is used for detecting the power supply condition of the ON gear power-supply circuit of vehicle and acquiring the actual speed; the controller module (4) is used for comparing the actual speed with an estimated speed and sending out locking-P-gear signals and deceleration signals and also sending cutting-off signals to the actuating module (5) after receiving the P-gear-locked signals or after the deceleration is completed; the actuating module (5) is used for cutting off the electrical pathway between the ON gear power-supply circuit and a load according to the cutting-off signals. The device can automatically lock the P gear of a vehicle without the manual operation by a driver so as to simplify the operation of the driver simultaneously. Moreover, the invention also provides a control method of the automatic parking braking.

Description

technical field [0001] The invention relates to the field of electric vehicles, and more specifically, to an automatic parking brake device and a control method for the automatic parking brake. Background technique [0002] In order to ensure parking safety, when parking for a long time, the existing ordinary fuel vehicles and hybrid vehicles need to pull up the handbrake in order to lock the vehicle in a stopped state. The existing hybrid vehicles also require the driver to manually lock the P Gear, P gear The controller directly receives the signal to lock the P gear triggered by the driver's operation and takes corresponding actions. In this manual locking method of the prior art, the manual operation steps are cumbersome, and the driver often forgets some operations, which may cause the vehicle to slip and be easily stolen. In addition, since the vehicle is equipped with high-voltage equipment such as motors, improper power failure during driving will bring greater impa...

AI Technical Summary

Problems solved by technology

In the manual locking method of the prior art, the manual operation steps are relatively cumbersome, and the driver often forgets some operations, which may cause the vehicle to slip and be easily stolen.

In addition, since the vehicle is equipped with high-voltage equipment such as motors, improper power failure during driving will bring greater impact to the running motors and relays, and even cause unpredictable damage

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