What are the advantages of CDC full-time active suspension of the new LaCrosse over ordinary suspension?

First, CDC shock absorption function

In the sports gear, CDC has obviously strengthened the shock absorption and damping, but in the D gear, the general car is almost the same. For example, if you drive in D gear in a city with ups and downs, the car will have several ups and downs. When the moving gear is used on the same road, due to the enhanced shock absorption and damping, the car body will stop after every ups and downs, and the ups and downs will be more, and the driving quality is better than that in the D gear state.

Second, it is more stable.

The suspension of LaCrosse is a very tough suspension, which is completely different from Regal when passing through the speed bump, and it is particularly comfortable. Regal has a clear sense of road, and the LaCrosse is more comfortable to drive. When the LaCrosse is cornering at high speed, the roll is smaller than that of LaCrosse, and the external suspension will actively harden and stabilize the body. Although the seat bag rolls back less, the body will not shake too much when cornering at high speed.

Extended data:

The working principle of CDC

According to the signal from the sensor and the control mode given by the driver, the microcomputer gives instructions to the suspension after calculation and analysis. The suspension can change the stiffness and damping coefficient of the suspension according to the instructions given by the microcomputer, so that the car body can maintain good stability during driving and the vibration response of the car body can be controlled within the allowable range.

The CDC system judges the driving state of the vehicle according to the data of sensors such as the body acceleration sensor, wheel acceleration sensor and lateral acceleration sensor on the vehicle, and the calculation is made by the central control unit ECU, and then the ECU sends corresponding instructions to the CDC control valve on the shock absorber to control the opening of the valve and provide damping suitable for the current state.

In actual driving, CDC can greatly reduce the vibration from the road surface and the spring rebound when encountering bumpy road surface, thus maintaining the stability of the car body. In theory, CDC can make the car body fluctuate up and down like a boat in the sea only when the wheels shake up and down violently.

When driving violently, it can improve the damping of the suspension and provide sufficient support, so that the chassis can react more quickly and improve the handling of the vehicle. ZF Sachs also mentioned in the introduction of CDC that the braking distance of vehicles with CDC system is shorter than that of vehicles without CDC system.

The application of CDC is not limited to cars. ZF Saks has CDC system products suitable for commercial vehicles such as buses and trucks, which provides better protection for the safety of goods and the comfort of passengers.

Baidu Encyclopedia -cdc (Automatic Adjustment Uninterrupted Shock Absorption Control System)