Electric vehicle control method and device, controller and electric vehicle
A technology of electric vehicles and control methods, which is applied in the field of controllers, electric vehicles, electric vehicle control methods, and devices, and can solve problems such as collisions, injuries, and violent car evasion
Active Publication Date: 2021-01-12
BEIJING CHJ AUTOMOTIVE TECH CO LTD
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Problems solved by technology
[0003] However, there are following defects in the above-mentioned electric vehicle starting control process: when the logical gear is switched from the parking gear (P gear) to the driving gear (D gear or R gear), the controller will request the EPB to release, but the release process It takes a certain amount of time or cannot be released in time due to some kind of failure. If the driver depresses the accelerator pedal deeply at this time, the car will violently run after the EPB is released suddenly, and there is even the danger and risk of crashing or injuring people.
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[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise, "multiple" Generally contain at least two.
[0029] It sho...
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The invention provides an electric vehicle control method and device, a controller and an electric vehicle. The method comprises the steps of obtaining a logic gear of the electric vehicle; when the logic gear is switched from the parking gear to the non-parking gear, obtaining current state information of the electronic parking system; when the current state information of the electronic parkingsystem is in a transition state, setting an accelerator pedal opening value as a zero opening value and setting a torque request value as a zero torque value; and when the current state information ofthe electronic parking system is in a release state, starting to respond to the accelerator pedal opening value from the initial value, and starting to respond to the torque request value from the zero torque value. According to the invention, the violent vehicle fleeing or collision accidents caused by the immediate response to the required values of the opening degree and the torque of the accelerator pedal can be avoided.
Description
technical field [0001] The invention relates to the technical field of electric vehicle control, in particular to an electric vehicle control method, device, controller and electric vehicle. Background technique [0002] When the electric vehicle is started, it needs to make a comprehensive judgment based on the acquired target gear, brake pedal status signal, vehicle speed signal, and shift lock status signal to obtain the logical gear. The controller judges the running status of the vehicle based on the current logical gear. And calculate the corresponding demand torque, and send it to the motor for execution after filtering; at the same time, the controller controls the tightening and releasing of EPB (Electrical Park Brake) according to the change of the current logical gear. [0003] However, there are following defects in the above-mentioned electric vehicle starting control process: when the logical gear is switched from the parking gear (P gear) to the driving gear (...
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Login to View More IPC IPC(8): B60L15/20
CPCB60L15/2072B60L2240/10Y02T10/72
Inventor 付世财
Owner BEIJING CHJ AUTOMOTIVE TECH CO LTD