1. the VSC vehicle stability control system
Introduction
The vehicle stability control system (VSC), English name Vehicle Stability Control. It is an active safety system developed by the Toyota Motor Corporation. Its function is similar to the system as well as BMW’s DSC Dynamic Stability Control, ESP electronic stability program public. In recent years, Toyota has made great achievements in terms of active safety, survey results from the United States the authority J.D.POWER point of view, the evaluation of the technical aspects of Lexus active safety more than BMW and Mercedes. Meanwhile, VSC system contributed. As an auxiliary control system of the vehicle, it can control the skidding phenomenon due to the steering wheel too hard or slippery road surfaces caused. When the sensor detects the vehicle skidding, the system can automatically control the engine power and braking respective wheels.
Stability Control system developed from other technically up, such as ABS and traction control technologies, these systems work, must detect whether a wheel lock and to be able to adjust the braking force of individual wheels. Stability control system utilizes the technology and a sensor control unit and used for calculation. Ongoing monitoring and treatment from the steering? Systems, wheels and car body sensor signals uploaded to determine whether the vehicle is slipping when cornering control unit. If found to slip, the control unit need for braking braked wheels to help stabilize the trace state of the vehicle. Some systems may further adjust the output power of the engine. Which can help control the car manufacturers spend a lot of vehicle stability control system funds to develop a vehicle without the need for driver intervention, they completed hundreds of comparative tests to optimize the degree of participation in the system of vehicle control. Speaking from the vehicle itself, there are some vehicles itself has a good handling, almost does not require correction system stability control; while others need a stronger system involved in the control. From the manufacturer’s point of view, some manufacturers prefer a slight instability in the event ofLet the timing stability control system involved in the control, while others only want to participate in the system control when necessary, some manufacturers choose to use conversion stability control system switch control involvement.
System Features
and other active safety systems such as ABS comparison, VSC system has three characteristics:
(1) real-time monitoring: VSC Real-time monitoring system can control the action of the driver (steering, braking and throttle, etc.), road information, vehicle motion, and continue to issue commands to the engine and brake system.
(2) Active intervention: ABS and other security technology is mainly from the operation of the driver’s intervention, but not the regulation of the engine. VSC system can by active control of the engine throttle valve to adjust the engine speed, and adjusts the driving force and braking force of each wheel to correct oversteer and understeer of the vehicle.
(3) warn: when improper operation of the driver or abnormal road, VSC system alerts the driver by a warning lamp.
For now, it is not possible to know which system is the greatest contribution to safety. By a few simple tests can not predict avoid accidents on the issue whether a car better than the other car. Thus, the use of stability control system should not be involved in the morning and evening, and to compare the intensity involved in the control of vehicle safety. Similarly, traffic accident statistics also not enough to prove that a manufacturer or a vehicle stability control system so that it reduces the accident rate. But the stability control system can effectively reduce traffic accidents caused due to loss of vehicle control, this conclusion has been proven. Nevertheless, the vehicle is running, play a decisive role is still the laws of physics. Under extreme conditions, the vehicle stability control system does not prevent skidding, but can reduce the degree of skidding.