Multimodal electromechanical hybrid brake decoupling method
A technology of hybrid braking and hybrid electric vehicles, which is applied in the direction of brakes, brake transmissions, transportation and packaging, etc., which can solve problems such as difficult debugging, complicated control strategies, and affecting the use of safety systems such as ABS, so as to avoid stepped air pressure Effects of change coordination process, simplified control strategy, and prevention of disturbance effects
Active Publication Date: 2019-04-12
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 invention provides a multimodal electromechanical hybrid brake decoupling method. The multimodal electromechanical hybrid brake decoupling method comprises the following steps: a HCU (Hybrid Control Unit) receives a brake signal sent by an electric control brake master valve, performs a reverse-dragging torque brake operation according to the brake signal and outputs a control current to a proportional relay valve; when a brake pedal reaches a predetermined opening degree, the HCU receives the brake signal, and meanwhile a conventional pneumatic circuit begins to output a pneumatic pressure; the proportional relay valve converts the received control current proportionally and outputs a brake pressure. With the multimodal electromechanical hybrid brake decoupling method, the technical problems in the prior art that the pressure adjustment of each wheel is directly performed through an ABS (Anti-skid Brake System) regulator, the debugging process is very difficult and the safety effect may be affected during the driving process are solved; and the technical effects that the redundancies of the electronic control and the traditional medium are performed while electromechanical decoupling is realized, the voltage input and the pneumatic pressure output are proportionally controlled on the control main circuit, the control strategy is simplified and the interference for the safety system is prevented are achieved.
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