The solution is based on Infineon's control chip. The sensor detects the magnitude and direction of the torque or angle generated by the steering wheel during the steering operation, and converts the required information into a digital signal input ECU, which is then calculated by the ECU. A torque that is adapted to the driving conditions, and finally a command to drive the motor to work, the output torque of the motor is assisted by the action of the transmission. Program overview: Electric Power Steering (EPS) is a power steering system that directly relies on the motor to provide auxiliary torque, as shown in the figure. EPS structure The controller selects Infineon's xc8xx, the steering wheel torque sensor uses Infineon's TLE4997, and the steering wheel angle sensor uses two Infineon's TLE5011 and xc8xx. Main technical indicators of the controller: 1, working temperature -40 ° C - +105 ° C 2, working voltage 9-16V 3, the maximum allowable current: 75A 4, the minimum controllable current 0.1A 5, the minimum torque output 0.1Nm Torque sensor specifications: 1. Measurement range: ±4° 2, accuracy: full range 1% 3, corner resolution: 0.01 ° 4, working temperature: -40 - +125 ° C Steering wheel angle sensor: 1. Measurement range: -720-720° 2, accuracy: ± 2.5 ° 3, corner resolution: 0.1 ° 4, working temperature: -40 - +85 ° C The driving energy of electric vehicles is mainly power batteries, or mainly driven by the engine. The steering device cannot adopt the traditional hydraulic driving method driven by the engine, but needs to use the motor to assist the steering. This is to adopt electric power steering. It is a system that controls the high-performance motor based on the mechanical steering system to assist the driver in steering operation. At present, the electric steering technology has developed rapidly, and technologies such as “active steering†and “line transmission steering†have emerged. For example, the currently used “automatic parking assist†system is an active steering application, which does not need to wait for the driver to operate. The steering wheel sends a signal, and the steering ECU will actively issue commands to control the steering of the vehicle according to the need of parking, and realize automatic position finding parking, which is applied in the unmanned vehicle and the automatic stable driving track. AC Power Adapter,Power Adapter,USB Power Adapter,Electrical Power Adapters Dongguan baiyou electronic co.,ltd , https://www.dgbaiyou.com