SYSTEM AND A METHOD FOR DISSIPATING VOLTAGE IN AN ELECTRICAL CIRCUIT OF A VEHICLE
First Claim
Patent Images
1. A system for dissipating voltage in an electrical circuit of a vehicle, the system comprising:
- a power system having a voltage source and a contactor;
an inverter electrically coupled to the power system, the inverter including a device for storing an electrical charge;
an electrical machine electrically coupled to the inverter and adapted to drive a vehicle traction wheel, and a vehicle impact detection system adapted to detect a vehicle impact situation;
wherein the contactor is opened to disconnect the voltage source when a vehicle impact situation is detected and before the device is discharged with the electrical machine.
2 Assignments
0 Petitions
Accused Products
Abstract
A system and a method for dissipating voltage in an electrical circuit of a vehicle. The system includes a power source and an inverter. The power source has a voltage source and a contactor. The inverter is electrically coupled to the power source and includes a device for storing an electrical charge. The contactor is opened to disconnect the voltage source before the device is discharged.
37 Citations
20 Claims
-
1. A system for dissipating voltage in an electrical circuit of a vehicle, the system comprising:
-
a power system having a voltage source and a contactor;
an inverter electrically coupled to the power system, the inverter including a device for storing an electrical charge;
an electrical machine electrically coupled to the inverter and adapted to drive a vehicle traction wheel, and a vehicle impact detection system adapted to detect a vehicle impact situation;
wherein the contactor is opened to disconnect the voltage source when a vehicle impact situation is detected and before the device is discharged with the electrical machine. - View Dependent Claims (2, 3, 4)
-
-
5. A method of dissipating voltage in an electrical circuit of a vehicle, the method comprising:
-
providing a disconnect signal;
opening a contactor in response to the disconnect signal to disconnect a voltage source from the electrical circuit;
discharging a device for storing an electrical charge disposed in an inverter at a first rate; and
discharging the device at a second rate that is less than the first rate. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method of dissipating voltage in an electrical circuit of a vehicle, the method comprising:
-
providing a first signal based on the status of a vehicle impact detection system;
providing a second signal based on a status of a continuity circuit;
opening a contactor to disconnect a voltage source from the electrical circuit when the first signal is indicative of a vehicle impact situation or the second signal is indicative of a continuity interruption;
providing a first delay;
discharging a capacitor disposed in an inverter with an electrical machine adapted to drive vehicle traction wheels;
providing a second delay; and
discharging the capacitor with a resistor disposed in the inverter. - View Dependent Claims (17, 18, 19, 20)
-
Specification