Suitable e.g. for 4in1 e-axle
Combination of two functions in one actuation system significantly reduces assembly and integration efforts
Identical system applicable to e-axles with parking lock and e-axles with disconnect unit
Robust architecture without active valves simplifies filtration requirements
In the most straightforward transmission concept, the ‘cooling + 1’ actuator, the two tasks of circulating heat and operating the slave element are quite simply implemented without the use of active valves by reversing the pump direction. The two-pressure valve allows the pump to prime from both directions and shut off the opposing side. Rotation in one direction operates the cooling function while rotation in the opposite direction operates the actuator piston. A mechanism which can be designed to be stable in either the final position or a specific position locates the actuator piston. This means that the pump is once again fully available for the cooling function once the actuator piston has been operated.
Supported functions:
- On-demand cooling
- Lubrication
- Parking lock
- Disconnect
Compact All-in-One actuation system includes software, control unit, electric pump, valve body and integrated actuation cylinder
Highly dynamic BLDC motor with bidirectional external gear pump
Exemplary dimensioning: Oil circulation flow rate up to 10 l/min @ 1 bar and actuation force up to 500 N
