A multi-mode electromechanical hybrid braking decoupling method
A hybrid braking and hybrid vehicle technology, applied in the direction of brakes, braking transmissions, vehicle components, etc., can solve problems such as difficulty in debugging, affecting the use effect of ABS and other safety systems, and complicated control strategies, and avoid stepped changes in air pressure. The effect of coordinating processes, preventing disturbance effects, and simplifying control strategies
Active Publication Date: 2021-08-24
SPECIAL VEHICLE TECH CENT OF HUBEI AEROSPACE TECH RES INST
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Problems solved by technology
[0005] The embodiment of the present invention provides a multi-mode electromechanical hybrid braking decoupling method, which solves the problem of pressure regulation through ABS and other systems in the prior art. The control strategy is very complicated, and debugging is very difficult, which will affect the use effect of ABS and other safety systems. technical issues
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Embodiment 1
[0026] figure 1 It is a schematic flowchart of a multi-mode electromechanical hybrid braking decoupling method in an embodiment of the present invention. The embodiment of the present invention provides a multi-mode electromechanical hybrid brake decoupling method, please refer to Figure 1-4 , the hybrid electric vehicle is equipped with a proportional relay valve 3, an electronically controlled brake master valve 1, a brake pedal 5, a vehicle controller 2, an air storage tank 7, and a regulator 4, wherein the proportional relay valve 3 is installed on the main control loop, the method includes:
[0027] Step 10: Receive the braking signal from the electric brake master valve 1 through the vehicle controller, perform motor anti-drag torque braking operation according to the braking signal, and send the braking signal to the proportional relay valve 3 output control current.
[0028] Specifically, the traditional hybrid chassis controls the air pressure or hydraulic pressur...
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The present invention provides a multi-mode electromechanical hybrid braking decoupling method, comprising: receiving the braking signal sent by the electronically controlled braking master valve through the vehicle controller (HCU), and performing decoupling according to the braking signal The motor anti-drag torque brake operation, and output control current to the proportional relay valve; when the brake pedal reaches the predetermined opening, the vehicle controller receives the brake signal, while the traditional air pressure circuit Start output; the proportional relay valve converts the received control current in proportion to output brake pressure. It solves the technical problems in the prior art that it is very difficult to adjust the pressure of each wheel directly through the ABS regulator, and the debugging process may affect the safety effect during driving. It achieves the mechanical and electrical decoupling and at the same time carries out the redundancy of electric control and traditional media, and performs proportional control on the voltage input and air pressure output on the control main circuit, simplifies the control strategy, and prevents the technical effect of interfering with the safety system.
Description
technical field [0001] The invention relates to the technical field of vehicle equipment, in particular to a multi-mode electromechanical hybrid braking decoupling method. Background technique [0002] Due to the limited battery storage capacity of hybrid electric vehicles, it is necessary to improve fuel economy as much as possible, minimize energy usage, and store as much braking energy as possible in the battery system. When the brake pedal is stepped on for braking when the hybrid vehicle is running, the electric motor is used as a generator to convert part of the kinetic energy into electrical energy and store it in the battery system, and this part of the energy can be used again as driving energy. When the braking torque provided by electric energy cannot meet the braking requirements of the whole vehicle, the total braking torque can be compensated by the traditional pneumatic and hydraulic braking torque. [0003] However, the applicant of the present invention fin...
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IPC IPC(8): B60T13/74
CPCB60T13/74
Inventor 刘杰冯炜王大伟
Owner SPECIAL VEHICLE TECH CENT OF HUBEI AEROSPACE TECH RES INST