1. Automobile wire steering system
-wire steering system by the automotive steering wheel assembly, steering actuator assembly and the main controller (ECU) and the three main parts fail-safe system, auxiliary power supplies system.
comprises a steering wheel assembly, steering wheel angle sensor, torque sensor, the steering wheel return torque motor. The main function of the steering wheel assembly is a driver’s steering intention conversion (by measuring the steering wheel angle) into a digital signal and passed to the main controller; while receiving torque signal sent from the main controller, the steering wheel return torque is generated to provide information to the appropriate road feel to the driver. A front wheel assembly includes a steering actuator angle sensor, a steering actuating motor, motor controller and a steering front wheel steering assembly and other components. Steering actuator assembly function is to accept the command of the main controller, the steering wheel is rotated by the motor controller controls the steering, the driver’s steering intention to achieve.
The main controller of the process to analyze the collected signals, determines the motion state of the vehicle, the steering motor sends instructions to the motor and the steering wheel return force, the motor control operation of the two, to ensure that various conditions have over the vehicle response, in order to reduce the driver steering the vehicle speed change characteristic with compensation task, reduce pilot workload. While the controller may also identify the driver of the operation instruction, the current state is determined in the driver’s steering operation is reasonable. When the vehicle is in a non-steady state error command issued by the driver or by-wire steering system will shield the driver mistakenly steering operation, the automatic stabilization control, making the car to return to a stable state as soon as possible.
fail-safe module system is an important by-wire steering system, which includes a series of monitoring and enforcement algorithm, make the appropriate treatment for various forms of fault and fault level, in order to maximize their automobiles the normal driving. As one of the most widely used means of transport, the car’s safety factors must be considered, of all basic research, and thus automatic fault detection and automatic processing of wire steering system is the most important component of the DepartmentOne of the system. It uses strict fault detection and processing logic is more improved vehicle safety performance.
The power supply system bears controller, two motors, and perform other tasks vehicle electrical power, wherein the maximum power is only performed motor front corner there 500-800W, together with other electronic equipment on automobiles , the burden of power supply has been quite heavy. So to ensure grid stability under heavy load, the power of performance is very important.