Electric power steering system, vehicle, and control method of electric power steering system
A technology of electric power steering and power-assisted motor, which is applied in the direction of automatic steering control components, electric steering mechanism, power steering mechanism, etc. It can solve the problems of random hardware failure and systematic failure, and achieve shortened cycle, reduce manpower and time cost , to achieve the effect of rapid iterative development
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Embodiment 1
[0035] figure 1 It is a schematic structural diagram of an electric power steering system provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of realizing rapid iterative development of an electric power steering control system based on an SOA architecture. The specific structure of the electric power steering system 1 includes as follows:
[0036] The electric power steering system 1 includes an EPS state machine 10, wherein the EPS state machine 10 includes at least one SOA server, and the SOA server is configured such that the EPS state machine 10 provides Provide at least one of the following services; the EPS state machine 10 includes:
[0037] Torque sensor signal service 11, which is configured to provide steering wheel angle and torque parameters required by the electric power steering system 1;
[0038] Speed-dependent power assist service 12, which is configured to provide the electric power steering system 1 with retur...
Embodiment 2
[0071] figure 2 A schematic structural diagram of a vehicle provided by Embodiment 2 of the present invention, the vehicle includes an electric power steering system provided by the embodiment of the present invention, and the vehicle has corresponding functional modules and beneficial effects of the electric power steering system.
[0072] The vehicle provided by the embodiment of the present invention includes an electric power steering system, the EPS state machine includes at least one SOA server, and the SOA server is configured such that the EPS state machine provides the electric power steering system with at least one of the following services; The EPS state machine includes: torque sensor signal service, which is configured to provide the steering wheel angle and torque parameters required by the electric power steering system; The return-to-alignment assist parameters that vary with the speed of the vehicle; the return-to-alignment assist service, which is configure...
Embodiment 3
[0074] image 3 It is a schematic flowchart of a control method for an electric power steering system provided by Embodiment 3 of the present invention. This embodiment is applicable to the situation of realizing rapid iterative development of an electric power steering control system based on an SOA architecture. The control method of the electric power steering system is applied to the electric power steering system provided in this embodiment, and the control method of the electric power steering system specifically includes the following steps:
[0075] S310. Obtain the steering wheel angle and torque parameters required by the electric power steering system, as well as the centering assist parameters that vary with the vehicle speed and the centering torque parameters generated by driving the steering wheel through the steering column drive shaft.
[0076] S320. Determine, according to the steering wheel angle and torque parameters, the return assist parameters, and the ret...
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