Operating principle of the actuator
The BLDC motor offers high dynamics and torque density in minimal space. The platform permits implementation of an intelligent drive strategy, variable torque scaling through adaptation of the active length and several configuration options for the electronics. The motor is designed for harsh ambient conditions (depends on load profile/application), e.g. temperatures of –40 up to +140 °C and high vibration and tightness requirements.
A precise position sensor is integrated into the Type S actuator. Control takes place in the higher-level control unit. Application examples: Shift/select functions in the transmission, electrical clutch actuation or the oil pump drive.
The Type E actuator receives speed or position data from a higher-level control unit over the CAN bus. Control and commutation of the motor take place in the integrated power electronics. Application examples: Actuation of the disconnect clutch in hybrid transmissions, park lock actuator in an eAxle or actuation of a torque vectoring system.
In addition to position and speed control, the powerful electronics of the Type M permits additional control unit functions: Execution of customer-specific application/system software, communication with other control units or sensors via CAN bus or FlexRay. Control of other system components. Application examples: Torque distribution in transfer case and torque vectoring systems or shift actuation in multi-speed eAxles.