Anti-slip torque control method, device and vehicle
A torque control and vehicle technology, applied in the direction of control devices, control drives, vehicle components, etc., can solve the problems of driving safety hazards, technical limitations, and high costs
Active Publication Date: 2022-04-26
BEIJING HAINACHUAN AUTOMOTIVE PARTS
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Problems solved by technology
[0002] At present, in the process of driving, the driving wheels of some vehicles such as two-wheel drive electric vehicles can be divided into driving wheels and driven wheels. The driving wheel may slip, causing the driving wheel to change from static friction to sliding friction, greatly reducing the friction of the wheel, and in severe cases, it will cause the vehicle to lose control
[0003] In related technologies, the vehicle is equipped with an independent chassis traction control system, but due to high cost, long development cycle and relatively large technical limitations, many low-end and mid-end models are not equipped with a chassis traction control system, which brings great harm to driving. Safety hazards that need to be resolved urgently
Method used
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[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0033] The anti-slip torque control method, device and vehicle according to the embodiments of the present invention will be described below with reference to the accompanying drawings. First, the anti-slip torque control method according to the embodiments of the present invention will be described with reference to the accompanying drawings.
[0034] figure 1 It is a flow chart of a vehicle anti-slip torque control method according to an embodiment of the present invention
[0035] Such as figure 1 As shown, the anti-slip tor...
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The invention discloses an anti-slip torque control method, device and vehicle, wherein the method includes: when detecting that the driving wheels of the electric vehicle are in a slipping state, determining the first target torque according to the current torque and the current torque reduction coefficient of the electric vehicle, and Determine the second target torque according to the current torque and torque recovery coefficient of the electric vehicle; reduce the motor request torque to the first target torque, and restore the motor request torque to the second torque after suppressing the slip of the drive wheel; detect that the drive wheel exits When slipping, the torque requested by the motor is restored to the torque requested by the driver. According to the method of the embodiment of the present invention, the torque of the driving wheel can also be interfered without an independent chassis traction control system, so as to achieve the purpose of suppressing the slipping of the driving wheel, effectively avoiding the phenomenon of out-of-control of the vehicle due to slipping, and effectively ensuring driving safety .
Description
technical field [0001] The invention relates to the technical field of automotive electronics, in particular to an anti-slip torque control method, device and vehicle. Background technique [0002] At present, in the process of driving, the driving wheels of some vehicles such as two-wheel drive electric vehicles can be divided into driving wheels and driven wheels. The driving wheel may slip, causing the driving wheel to change from static friction to sliding friction, greatly reducing the friction of the wheel, and in severe cases, it will cause the vehicle to lose control. [0003] In related technologies, the vehicle is equipped with an independent chassis traction control system, but due to high cost, long development cycle and relatively large technical limitations, many low-end and mid-end models are not equipped with a chassis traction control system, which brings great harm to driving. Potential safety hazards need to be resolved urgently. Contents of the inventi...
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IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/423B60L2240/461Y02T10/72
Inventor 班平宝石刚
Owner BEIJING HAINACHUAN AUTOMOTIVE PARTS