Steering load determination method and device, steer-by-wire system and vehicle
A determination method and vehicle technology, applied to vehicle components, steering mechanisms, electric steering mechanisms, etc., can solve problems such as lack of force transmission paths
Active Publication Date: 2022-03-29
CHINA FIRST AUTOMOBILE
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Problems solved by technology
[0004]
The present invention provides a steering load determination method and device, a steering-by-wire system and a vehicle, which are used to transfer the steering load to the driver's hand, and overcome the problem of lack of a force transmission path caused by the absence of an intermediate shaft in the existing steering-by-wire system
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[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0042] figure 1 It is a schematic flowchart of a steering load determination method provided by an embodiment of the present invention, figure 2 It is a schematic flow chart of a method for determining the real measured load moment provided by the embodiment of the present invention, image 3 It is a schematic flowchart of a method for determining road load simulation moment provided by an embodiment of the present invention, Figure 4 The method flow chart of a steering load determination method provided by th...
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The embodiment of the invention discloses a steering load determination method and device, a steer-by-wire system and a vehicle. The method comprises the following steps: acquiring vehicle state data; according to the vehicle state data, determining a real measurement and calculation load moment; determining a road surface load simulation moment according to the vehicle state data; and superposing the real measured and calculated load torque and the road surface load simulation torque to obtain a steering load. Wherein the vehicle state data comprises the torque of the execution motor, the rotation angle of the execution motor, the rotation speed of the execution motor, the vehicle stability factor and the vehicle speed. According to the embodiment of the invention, the steering load is obtained by actually measuring and calculating the load torque and the pavement load simulation torque, and the steering load is applied to the steering wheel through execution components such as the motor, so that a driver can obtain the steering load through the steering wheel. The problem that an existing steer-by-wire system is lack of a force transmission path due to the fact that no intermediate shaft exists is solved. The steering control precision of the driver is improved.
Description
technical field [0001] Embodiments of the present invention relate to vehicle steering technology, and in particular to a method and device for determining a steering load, a steer-by-wire system and a vehicle. Background technique [0002] With the development of technology, the vehicle steering control system is also constantly improving. [0003] Because the existing steering-by-wire system cancels the intermediate shaft, it is equivalent to removing the force transmission path between the driver and the ground through the steering wheel. This causes the driver to be unable to feel the ground load intuitively, and the driver will lose part of the steering feeling. As a result, the steering accuracy is reduced, and it is impossible to accurately steer to the direction the driver wants to turn. Contents of the invention [0004] The invention provides a steering load determination method and device, a steering-by-wire system and a vehicle, which are used to transfer the...
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IPC IPC(8): B62D5/04
CPCB62D5/0463B62D5/046B62D5/0466Y02T10/72
Inventor 高尚姜廷龙常秀岩侯慧贤
Owner CHINA FIRST AUTOMOBILE