CN-115347846-B - Dual power supply dual control architecture

Abstract

A dual power dual control architecture. A system for an inverter includes a first integrated circuit configured to power a first set of switches and selectively control the first set of switches and a second set of switches, a second integrated circuit configured to power the second set of switches, and a motor connected to the first set of switches and the second set of switches, wherein the second integrated circuit is further configured to selectively control the first set of switches and the second set of switches in response to a fault detected in the first integrated circuit, and to perform a safe state operation in response to at least one voltage value corresponding to a voltage of the first set of switches not being within a range of thresholds.

Inventors

• M w gauss
• M. COHEN
• T. Nahnani
• C. KLAUS

Assignees

• 德尔福知识产权有限公司

Dates

Publication Date

20260505

Application Date

20220510

Priority Date

20210514

Claims (20)

1. 1. An inverter system including a first set of switches and a second set of switches for controlling operation of an electric motor, the inverter system further comprising: the first integrated circuit (ic) is configured to be coupled to a first power supply, the first integrated circuit is configured to: Supplying power to the first set of switches using a first high voltage power supply and a first low voltage power supply, the first high voltage power supply and the first low voltage power supply being connected to the first integrated circuit, and Selectively controlling the first set of switches and the second set of switches; a second integrated circuit configured to power the second set of switches using a second high voltage power supply and a second low voltage power supply, the second high voltage power supply and the second low voltage power supply being connected to the second integrated circuit, and Wherein the second integrated circuit is further configured to: selectively controlling the first set of switches and the second set of switches in response to a fault detected in the first integrated circuit, and A safe state operation is performed in response to at least one voltage value corresponding to a voltage of the first set of switches being outside a range of threshold values.
2. 2. The inverter system of claim 1, wherein the first high voltage power source is connected in parallel with the first low voltage power source.
3. 3. The inverter system of claim 1, wherein the second high voltage power source is connected in parallel with the second low voltage power source.
4. 4. The inverter system of claim 1, wherein the at least one voltage value is indicative of a fault in the inverter.
5. 5. The inverter system of claim 1, wherein the second integrated circuit is further configured to detect the fault in the first integrated circuit based on an internal signal of the first integrated circuit.
6. 6. The inverter system of claim 1, wherein the motor comprises a permanent magnet motor.
7. 7. The inverter system of claim 1, wherein the electric motor is associated with a vehicle.
8. 8. The inverter system of claim 1, wherein the first set of switches and the second set of switches selectively control operation of the motor.
9. 9. The inverter system of claim 1, wherein the second integrated circuit is configured to perform the safe state operation by turning off the first set of switches and the second set of switches.
10. 10. The inverter system of claim 1, wherein the second integrated circuit is configured to perform the safe state operation by enhancing the first set of switches and the second set of switches.
11. 11. The inverter system of claim 1, wherein the first set of switches and the second set of switches are selectively controlled in response to the second integrated circuit, the first integrated circuit powering the first set of switches and the second integrated circuit powering the second set of switches.
12. 12. The inverter system of claim 1, wherein the second integrated circuit returns control of the first set of switches to the first integrated circuit in response to the failure in the first integrated circuit terminating.
13. 13. A method of controlling an inverter system, the method comprising the steps of: Using a first integrated circuit, powering a first set of switches using a first high voltage power supply and a first low voltage power supply, the first high voltage power supply and the first low voltage power supply being connected to the first integrated circuit; selectively controlling the first and second sets of switches using the first integrated circuit; Powering the second set of switches using a second integrated circuit using a second high voltage power supply and a second low voltage power supply, the second high voltage power supply and the second low voltage power supply being connected to the second integrated circuit; Controlling a motor using the first set of switches and the second set of switches, wherein the second integrated circuit is configured to: selectively controlling the first set of switches and the second set of switches in response to a fault detected in the first integrated circuit, and A safe state operation is performed in response to at least one voltage value corresponding to a voltage of the first set of switches being outside a range of threshold values.
14. 14. The method of claim 13, wherein the motor comprises a permanent magnet motor.
15. 15. The method of claim 13, wherein the electric motor is associated with a vehicle.
16. 16. The method of claim 13, wherein the second integrated circuit is configured to perform the safe state operation by turning off the first set of switches and the second set of switches.
17. 17. The method of claim 13, wherein the second integrated circuit is configured to perform the safe state operation by enhancing the first set of switches and the second set of switches.
18. 18. The method of claim 13, wherein the first set of switches and the second set of switches are selectively controlled in response to the second integrated circuit, the first integrated circuit powering the first set of switches and the second integrated circuit powering the second set of switches.
19. 19. The method of claim 13, wherein the second integrated circuit returns control of the first set of switches to the first integrated circuit in response to a failure abort in the first integrated circuit.
20. 20. An apparatus for controlling an inverter system, the apparatus comprising: A first integrated circuit configured to: supplying power to a first set of switches using a first high voltage power supply and a first low voltage power supply, the first high voltage power supply and the first low voltage power supply being connected to the first integrated circuit, and Selectively controlling the first and second sets of switches; a second integrated circuit configured to power the second set of switches using a second high voltage power supply and a second low voltage power supply, the second high voltage power supply and the second low voltage power supply being connected to the second integrated circuit, and A motor controlled by the first set of switches and the second set of switches, Wherein the second integrated circuit is further configured to: selectively controlling the first set of switches and the second set of switches in response to an internal signal of the first integrated circuit representative of a fault in the first integrated circuit; returning control of the first set of switches to the first integrated circuit in response to the internal signal of the first integrated circuit representing the failure termination in the first integrated circuit, and A safe state operation is performed in response to at least one voltage value corresponding to a voltage of the first set of switches being outside a range of threshold values.

Description

Dual power supply dual control architecture Technical Field The present disclosure relates to vehicle motors, and in particular to a system and method for dual power dual control of a vehicle motor. Background Vehicles such as cars, trucks, sport utility vehicles, off-road vehicles, minivans, or other suitable vehicles typically include various electric motors, such as permanent magnet motors or other suitable motors. Such motors may be used in various aspects of vehicle control or operation, such as vehicle propulsion or other suitable aspects of vehicle control or operation. Typically, an inverter or frequency converter (e.g., which may be referred to as an inverter system) controls the speed or torque of such a motor. For example, the inverter may receive power from one or more power sources and may regulate the power provided to the motor to control motor speed or torque. During operation, in the event of a failure of a component of the inverter system, the inverter system may be configured to maintain system safety. When a fault occurs, this is typically achieved by applying a minimum amount of torque to the motor and by limiting the back emf (back emf) voltage from the motor (e.g., such that the back emf is lower than the voltage from the high voltage battery of the vehicle). Disclosure of Invention The present disclosure relates generally to vehicle motors. One aspect of the disclosed embodiments includes a system for an inverter. The system includes a first integrated circuit configured to power a first set of switches using a first high voltage power supply and a first low voltage power supply, the first high voltage power supply and the first low voltage power supply being connected to the first integrated circuit and selectively controlling the first set of switches and a second set of switches, a second integrated circuit configured to power the second set of switches using a second high voltage power supply and a second low voltage power supply, the second high voltage power supply and the second low voltage power supply being connected to the second integrated circuit, and a motor connected to the first set of switches and the second set of switches, wherein the second integrated circuit is further configured to selectively control the first set of switches and the second set of switches in response to a fault detected in the first integrated circuit, and to perform a safe state operation in response to at least one voltage value corresponding to the voltage of the first set of switches being outside a threshold. Another aspect of the disclosed embodiments includes a method. The method includes the steps of using a first integrated circuit, powering a first set of switches using a first high voltage power supply and a first low voltage power supply, the first high voltage power supply and the first low voltage power supply being connected to the first integrated circuit. The method also includes selectively controlling the first set of switches and the second set of switches using the first integrated circuit. The method further includes powering a second set of switches using a second integrated circuit using a second high voltage power supply and a second low voltage power supply, the second high voltage power supply and the second low voltage power supply being connected to the second integrated circuit. The method further includes controlling the motor using a first set of switches and a second set of switches, wherein the second integrated circuit is configured to selectively control the first set of switches and the second set of switches in response to a fault detected in the first integrated circuit and to perform a safe state operation in response to at least one voltage value corresponding to a voltage of the first set of switches being outside a range of thresholds. Another aspect of the disclosed embodiments includes an apparatus. The apparatus includes a first integrated circuit configured to supply power to a first set of switches using a first high voltage power supply and a first low voltage power supply, the first high voltage power supply and the first low voltage power supply being connected to the first integrated circuit and selectively controlling the first set of switches and a second set of switches, a second integrated circuit configured to supply power to the second set of switches using a second high voltage power supply and a second low voltage power supply, the second high voltage power supply and the second low voltage power supply being connected to the second integrated circuit, and a motor controlled by the first set of switches and the second set of switches, wherein the second integrated circuit is further configured to selectively control the first set of switches and the second set of switches in response to an internal signal of the first integrated circuit indicative of a fault in the first integrated circuit, to disable the first set of switches in respo