Electric vehicle control method and system and electric vehicle
An electric vehicle control and drive system technology, applied in the fields of systems, electric vehicles, and electric vehicle control methods, can solve problems such as affecting the normal operation of other loop systems, and achieve the effect of improving reliability and stability
Pending Publication Date: 2022-05-03
SANY ELECTRIC VEHICLE TECH CO LTD
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Problems solved by technology
[0004] The invention provides an electric vehicle control method, system and electric vehicle, which are used to solve the defect in the prior art that the failure of one circuit system affects the normal operation of other circuit systems caused by the non-independent power-on and power-on logic of each circuit system of the electric vehicle, and realize Independent decoupling control of the power-on logic of each high-voltage drive system of the vehicle improves the reliability and stability of the vehicle
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[0040] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0041] For ease of understanding, the nouns involved in the present invention are explained below first:
[0042] Vehicle controller VCU: The core electronic control unit that realizes vehicle control decision-making. Generally, it is only equipped with new energy sources, and traditional fuel vehicles do not need this device. The VCU judges the driver's driving intention by collecting signa...
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The invention relates to the technical field of vehicle control, and provides an electric vehicle control method and system and an electric vehicle. Judging whether the high-voltage feedback information is high-voltage success information or not; and after it is judged that the high-voltage feedback information is high-voltage success information, power-on instructions are issued to all high-voltage driving systems of the vehicle, and problems of all the high-voltage driving systems in the power-on process are solved. The method is used for overcoming the defect that normal work of other loop systems is affected by faults of one loop system due to the fact that power-on and power-off logics of all loop systems of an electric vehicle are not independent in the prior art, power-on logic independent decoupling control over all high-voltage driving systems of the vehicle is achieved, and the reliability and stability of the whole vehicle are improved.
Description
technical field [0001] The invention relates to the technical field of vehicle control, in particular to an electric vehicle control method, system and electric vehicle. Background technique [0002] In the current electric special vehicle system, the working limits of each circuit system are handled uniformly, which makes on the one hand, when one of the high-voltage related components of the vehicle (such as all-in-one, electric drive, etc.) fails or a high-voltage relay cannot be closed, the high-voltage of the vehicle Relevant components will be limited in power according to the same level or cannot be enabled, that is, the logic of the power on and off of each branch of the main drive, auxiliary drive, and bodywork is not independent. When a branch cannot be powered on, it will affect other branches outside the branch. circuit. For example, a side stop caused by the failure of the main drive motor will cause the drive of the bodywork and auxiliary drive circuits to als...
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IPC IPC(8): B60L3/00B60L3/04
CPCB60L3/0023B60L3/0061B60L3/04
Inventor 陈红权龙成冰容航
Owner SANY ELECTRIC VEHICLE TECH CO LTD