Vector control board for an electric vehicle propulsion system motor controller

• US 5,627,758 A
• Filed: 06/10/1994
• Issued: 05/06/1997
• Est. Priority Date: 06/10/1994
• Status: Expired due to Term

• Current Assignee: Northrop Grumman Corporation
• Original Assignee: Northrop Grumman Corporation
• Inventors: Lansberry, Geoffrey B., Munro, James L.
• Primary Examiner(s): Voeltz, Emanuel T.
• Assistant Examiner(s): Wachsman, Hal D.
• Application Number:
  US08/258,306
• Time in Patent Office: 1,061 Days
• Field of Search: 364/481, 364/424.01, 364/424.02, 364/424.05, 364/424.1, 318/605, 318/568.24, 318/809, 318/823, 318/431-434, 318/437, 318/802, 318/803, 318/805, 318/807, 318/811, 318/254, 318/293, 318/599, 123/350-352, 123/355, 180/DIG. 3, 180/65.1, 180/535, 388/809, 388/811, 388/828, 388/829, 388/907.2, 388/907.5, 363/41, 363/98, 363/132
• US Class Current: 702/57
• CPC Class Codes: B60L 15/025 using field orientation; Vector control; Direct Torque Control [DTC]
• CPC Class Codes: B60L 15/2045 for optimising the use of energy
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 50/60 using power supplied by batteries in combination with fuel cells B60L50/75
• CPC Class Codes: B60L 7/14 for vehicles propelled by ac motors
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility

Abstract

A vector control board for an electric vehicle propulsion system motor controller comprising a microcontroller for generating torque requests, a digital signal processor for receiving the torque requests from the microcontroller and for generating phase voltage signals in accordance with the torque requests, and a digital gate array for receiving the phase voltage signals from the digital signal processor and for generating gate drive signals from the phase voltage signals.

Claims

1. A vector control board for an electric vehicle propulsion system comprising:

a microcontroller for generating torque requests; and

a digital signal processor for receiving said torque requests via a digital gate array and generating phase voltage signals,

said digital gate array for receiving said phase voltage signals and for generating pulse-width modulated signals for driving a power bridge.

2. The vector control board according to claim 1, further comprising a resolver interface for receiving rotor position measurements and an analog interface for receiving current measurements, wherein the digital signal processor further receives the rotor position measurements and the current measurements and generates the phase voltage signals in accordance with the torque requests, the rotor position measurements, and the current measurements.

3. The vector control board according to claim 1, wherein the digital signal processor further performs one or more of BIT operations, control functions, and diagnostic testing for the vector control board.

4. The vector control board according to claim 1, wherein the microcontroller performs one or more of BIT operations and diagnostic testing of the vector control board.