Introduction
Dynamic Stability Control DSC 8 E60Introduction
The E60 is fitted with Dynamic Stability Control DSC 8 as standard.
DSC 8 is an evolution from the DSC 5.7 version featured on the E65.
The DSC unit (consisting of DSC control unit and hydraulic unit) is even more powerful. System supplier of the DSC 8 is Bosch.
Overview
The principal new features of DSC 8 are:
- Very compact DSC unit approximately 25% smaller and some 30% lighter
- No electric pre-pressurizing pump
- DSC unit connected to the chassis CAN (F-CAN) in addition to connection to the powertrain
CAN (PT-CAN)
DSC is a control system that maintains dynamic stability within the laws of physics when the car is being
driven close to its limits of performance and handling.
It also improves traction.
The parameters DSC needs as input in order to discharge its control functions are as follows:
- Yaw rate (measure of movement of the car about its vertical axis)
- Lateral acceleration
- Wheel speeds (measure of the cars road speed)
- Steering angle
- Brake pressure
The measured values available are used to calculate how the car is moving at any given instant. This actual condition is compared to the nominal values calculated in the DSC control unit.
If the actual status deviates from the nominal values the DSC system goes active and intervenes in the braking system or the engine management system, as applicable.
The advantages:
The intervention of DSC in the engine control and brakes provides outstanding driving stability and traction in all driving situations. DSC counters negative dynamic driving forces and so creates a maximum degree of active safety within the limitations of the laws of physics. DSC thus enhances driving comfort by allowing more relaxed driving.