17851963. ROTOR POSITION-BASED RAMP RATE TO REDUCE VEHICLE HARSHNESS DURING ACTIVE DISCHARGE simplified abstract (Ford Global Technologies, LLC)
ROTOR POSITION-BASED RAMP RATE TO REDUCE VEHICLE HARSHNESS DURING ACTIVE DISCHARGE
Organization Name
Inventor(s)
Michael W. Degner of Novi MI (US)
ROTOR POSITION-BASED RAMP RATE TO REDUCE VEHICLE HARSHNESS DURING ACTIVE DISCHARGE - A simplified explanation of the abstract
This abstract first appeared for US patent application 17851963 titled 'ROTOR POSITION-BASED RAMP RATE TO REDUCE VEHICLE HARSHNESS DURING ACTIVE DISCHARGE
Simplified Explanation
The abstract of the patent application describes a controller that generates a current command for an inverter in a vehicle, based on the deactivation signal and disconnection of the traction battery. The current command includes a ramp portion that determines the rate of change in current magnitude, which is dependent on the electric angle between the rotor and stator of an electric machine.
- The controller responds to a signal indicating deactivation of a vehicle and disconnection of the traction battery from an inverter.
- It generates a d-axis current command for the inverter.
- The current command includes a ramp portion that determines the rate of change in current magnitude.
- The rate of change in current magnitude is dependent on the electric angle between the rotor and stator of an electric machine.
Potential Applications
- Electric vehicles
- Hybrid vehicles
- Electric machinery and equipment
Problems Solved
- Efficient and controlled deactivation of a vehicle
- Proper disconnection of the traction battery from the inverter
- Maintaining stability and safety during the deactivation process
Benefits
- Improved control and efficiency during vehicle deactivation
- Reduced risk of damage to the inverter and electric machine
- Enhanced safety and stability during the disconnection process
Original Abstract Submitted
A controller, responsive to a signal indicating deactivation of a vehicle and disconnection of a traction battery from an inverter, generates a d-axis current command for the inverter having a ramp portion that defines a rate of change in current magnitude that depends on an electric angle between a rotor and stator of an electric machine.
