A method for auxiliary control of electric vehicle hill start
A technology of auxiliary control and ramp start, applied in electric vehicles, control drive, power management, etc., to achieve the effect of fast torque control response, high torque control accuracy, and fast torque demand response
Active Publication Date: 2022-02-18
深圳熙斯特新能源技术有限公司
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Problems solved by technology
[0003] Aiming at the deficiencies of the prior art, the present invention discloses a hill start assist control method for an electric vehicle, which is used to solve the problem that a pure electric vehicle without a vehicle body electronic stability system can also realize the hill start assist control function, preventing the vehicle from Slip, assist the vehicle to start smoothly, and save the cost of the vehicle with the electronic stability system module installed on the body
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[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.
[0014] see figure 1 : A method for auxiliary control of electric vehicles on hills, including four steps of vehicle control command, parking and parking, anti-slip auxiliary control and normal driving. The vehicle control command sends an instruction to judge the drive control. When the drive control is turned on When the gear position signal is ...
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The present invention relates to the technical field of an auxiliary control method for an electric vehicle on a hill, in particular to a method for an auxiliary control for an electric vehicle on a hill, including four steps of vehicle control command, parking and parking, anti-slip auxiliary control and normal driving. The vehicle control command issues instructions to judge the drive control. When the drive control is turned on, it judges whether the gear signal is valid. When the gear signal is valid, the drive system judges whether the vehicle is slipping backwards. Judging by the driving control, when the driving control is not started, the gear signal is invalid or the vehicle is not slipping back, when it is necessary to park, stop and park directly; when it is not necessary to park, judge whether to exit the auxiliary control. , normal driving, when the drive system judges not to exit the auxiliary control, the anti-slip auxiliary control is performed, and the problem of slope up and down slope is solved by using the electric drive system for a more advanced control method.
Description
technical field [0001] The present invention relates to the technical field of methods for auxiliary control of electric vehicles on hills, in particular to a method for auxiliary control of electric vehicles on hills. Background technique [0002] When starting a car on a hill, during the switching process from releasing the brake system to stepping on the accelerator pedal, the handbrake is often needed to assist the start. Due to the complicated driving and control process, the vehicle is prone to slipping backwards, causing traffic accidents. At present, the hill start assist control function of traditional cars is based on the electronic stability system of the vehicle body. The braking force maintains the oil pressure of the brake oil pipe, so that the vehicle remains stationary in the braking state. After the driver depresses the accelerator pedal, the automatic braking force is withdrawn, so that the vehicle starts smoothly on the slope. However, for vehicles that ...
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IPC IPC(8): B60L15/20B60R16/023
CPCB60L15/20B60R16/023Y02T10/72
Inventor 陈跃东刘启安陈智鹏
Owner 深圳熙斯特新能源技术有限公司