VSC Body Stability Control System

Body Stability Control System (VSC), English full name of Vehicle Stability Control. It is an active safety system developed by Toyota Motor Corporation. The systems with similar functions include BMW's DSC dynamic stability control and Volkswagen's ESP electronic stabilization program. In recent years, Toyota has made great achievements in active safety, from the authority of the United States J. D. According to the evaluation results of POWER, Lexus's assessment of active safety technology exceeded that of BMW and Mercedes-Benz. In the meantime, the VSC system contributed. As a vehicle's auxiliary control system, it can control the side-slip phenomenon caused by slamming the steering wheel or slippery road surface. When the sensor detects that the vehicle is sliding, the system can automatically control the braking of each wheel and the engine power.

The stability control system is developed from other technologies, such as ABS and traction control technology. When these systems work, they must detect whether the wheels are about to lock up and can independently adjust the braking force of the wheels. The stability control system makes use of this technology as well as the sensors and calculation control units used. The control unit constantly monitors and processes signals from the sensors on the steering system, wheels and body to determine if the vehicle is slipping when cornering. If slipping is found, the control unit makes a slight brake on the wheel that needs braking to help stabilize the running state of the vehicle. Some systems can further adjust the output power of the engine. As a result, it is possible to help control vehicle vehicle manufacturers to spend a lot of money to develop the vehicle's stability control system without the need for driver intervention. They completed hundreds of tests to optimize the degree of participation of the system in vehicle control. From the perspective of the vehicle itself, there are some vehicles that are inherently maneuverable and require little modification of the stability control system; while others require a strong participation control of the system. From the manufacturer's point of view, some manufacturers prefer to have the stability control system involved in the control when there is slight instability, while others want the system to participate in control only when necessary, and some manufacturers choose to use the switch to change stability. The extent to which the control system participates in the control.

Compared with other active safety systems such as ABS, the VSC system has three major features:

(1) Real-time monitoring: The VSC system can monitor the driver's control actions (steering, braking, and throttle, etc.), road surface information, and vehicle movement status in real time, and continuously issues commands to the engine and brake system.

(2) Active intervention: ABS and other safety technologies mainly interfere with the driver's actions, but they cannot control the engine. The VSC system can correct the oversteer and understeer of the car by actively regulating the engine throttle to adjust the engine speed and adjust the driving force and braking force of each wheel.

(3) Pre-alert: When the driver is not operating properly or the road is abnormal, the VSC system will warn the driver with a warning light.

For now, it is impossible to know which system contributes the most to security. Through a few simple tests it is impossible to predict whether a car is better than another car in avoiding accidents. Therefore, the safety and security of the vehicle should not be compared using the stability control system's early and late participation and the strength of the participating control. Similarly, traffic accident statistics are not enough to prove that a manufacturer or a model's stable control system reduces the accident rate. However, the stability control system can effectively reduce the traffic accident caused by the loss of control of the vehicle. This conclusion has been proved. In spite of this, it is still the physical law that determines the role of the vehicle. In extreme conditions, the stability control system cannot prevent the vehicle from skidding, but it can reduce the degree of side slip.