Intermediate Shaft Integrated Disconnect Unit
Integrating a Disconnect Unit (DCU) into the intermediate shaft of an all-wheel drive electric vehicle increases system efficiency. When the secondary e-axle is not required, the DCU decouples the e-axle from the driveline. This reduces electrical and mechanical losses caused by the idle e-axle. The use of a DCU is particularly beneficial in systems where the e-axle functions as a secondary drive, such as in hybrid architectures or pure electric all-wheel drive concepts. Seamless disconnection increases energy efficiency without compromising traction performance when re-engagement is needed
Highlights
- Best compromise in terms of efficiency and installation space
- High flexibility in platform integration
- Weight-optimized solution
Advantages
- Reduced energy consumption of up to 6 % allows for a downsizing of the battery
- Transfer of former synchronizer technology
- Flexible electro-mechanical actuation concept with smart and non-smart variants available
Features
Torque capacity
Up to 1,800 Nm (scalable)
Fast shifting time
50 – 150 ms
Claw clutch engagement at speed difference
20 – 80 rpm
Typical number of actuations over lifetime
700,000 – 1,200,000