Power assist system of electric vehicle, electric vehicle and method for realizing power assistance
A technology for power assist systems and electric vehicles, which is applied to brake transmissions, brakes, vehicle components, etc. It can solve the problems of complex circuit design, braking energy recovery, and short service life, and achieve precise control and reduce braking. The effect of distance and fast reaction time
Active Publication Date: 2019-05-28
WM MOTOR TECH GRP CO LTD
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[0006] The embodiment of the present application provides a booster system for an electric vehicle, an electric vehicle and a booster implementation method, so as to at least solve the problem of electronic control requirements, braking energy recovery, short service life, high noise and complex circuit design in the existing booster system. technical problems with at least one of the
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[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0035] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such...
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The invention discloses a power-assisted system of an electric vehicle, the electric vehicle and a power assisting achieving method. The system comprises a sensing device used for obtaining brake information of a brake pedal for a target object and sending the brake information to a controller, the controller connected with the sensing device, used for generating a control command according to thebrake information and sending the control command to a drive motor, the drive motor connected with the controller and a brake master cylinder of the electric vehicle and used for providing first input force for the brake master cylinder according to the control command, and the brake pedal connected with the brake master cylinder and used for providing second input force for the brake master cylinder according to the detected input force of the target object. At least one of the technical problems that an existing power-assisted system requires electronic control and brake energy recovery andis short in service life, large in noise and complex in circuit design is solved.
Description
technical field [0001] The present application relates to the field of electric vehicles, and in particular, relates to a power assist system of an electric vehicle, an electric vehicle and a method for realizing power assistance. Background technique [0002] Most of the hydraulic braking systems of traditional fuel vehicles are assisted by vacuum boosters, which use the vacuum generated by the engine as the power source to assist, so as to reduce the pedal force and improve driving comfort. New energy (pure electric, gasoline-electric hybrid mode, unmanned vehicles) vehicles cannot obtain a continuous vacuum source because they do not have an engine or do not have an engine to work in some working modes. At present, new energy vehicles use electric vacuum pumps to provide vacuum The booster provides a vacuum source to boost the traditional electric vehicle vacuum booster system. [0003] Traditional electric vehicles still use the mature vacuum booster of fuel vehicles. S...
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IPC IPC(8): B60T13/74
CPCB60T13/745
Inventor 刘建凤胡志方刘超王占辉白依然王占军刘铁叩
Owner WM MOTOR TECH GRP CO LTD