Mode selection technique for onboard energy management

• US 8,538,617 B2
• Filed: 06/15/2011
• Issued: 09/17/2013
• Est. Priority Date: 06/15/2011
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Atluri, Venkata Prasad, Raghavan, Madhusudan
• Primary Examiner(s): Cheung, Mary
• Assistant Examiner(s): BRUSHABER, FREDERICK M
• Application Number:
  US13/160,783
• Publication Number:
  US 20120323415A1
• Time in Patent Office: 825 Days
• Field of Search: 701/22
• US Class Current: 701/22
• CPC Class Codes: B60L 8/003 Converting light into electric energy, e.g. by using photo-voltaic systems
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

An auxiliary energy management system for a vehicle includes an energy storage device, solar panel array, a preconditioning device, a communication module and a solar control module. The solar panel array generates electrical energy. The pre-conditioning device generates a temperature change to the vehicle. The solar control module includes a processor for selectively configuring a distribution of electrical energy captured by the solar energy panel to one of the energy storage device and the preconditioning device. The processor includes a mode selector logic module for indicating one of a passive enablement or active enablement of the distribution of electrical energy based on a vehicle driving status and the electrical energy availability from the solar panel array. At least one of a recharging function or a preconditioning function is enabled passively or actively based on a configuration in the mode selector logic module or a personalized configuration.

Claims

1. An energy management system for a vehicle comprising:

an energy storage device;

a pre-conditioning device for generating a temperature change to the vehicle;

a solar panel array for generating electrical energy, the solar panel array selectively coupled to the energy storage device and selectively coupled to the preconditioning device;

a solar control module including a processor for selectively configuring a distribution of electrical energy captured by the solar energy panel to one of the energy storage device and the preconditioning device, the solar control module configured to operate between a passive enablement mode and an active enablement mode, the processor including a mode selector logic module for indicating one of the passive enablement mode or active enablement mode of the distribution of electrical energy based on a vehicle driving status and the electrical energy availability from the solar panel array, wherein at least one of a recharging function or a preconditioning function is enabled passively or actively based on a configuration in the mode selector logic module.

2. The energy management system of claim 1 further comprising a first switch controlled by the processor that is selectively actuated for distributing electrical energy captured by the solar panel array to one of the preconditioning device or the energy storage device.

3. The energy management system of claim 2 wherein the configuration of the first switch is based on a function of a temperature inside a vehicle passenger compartment and a level of charge stored in the energy storage device.

4. The energy management system of claim 3 wherein the configuration of the first switch is a function of a temperature differential and a reference temperature, the temperature differential being a difference between the temperature of the vehicle passenger compartment and an ambient temperature exterior of the vehicle.

5. The energy management system of claim 4 wherein the configuration of the first switch is a function of a level of voltage in the energy storage device and a plurality of voltage thresholds, wherein the plurality of voltage thresholds are ranges for identifying a relative level of charge in the energy storage device.

6. The energy management system of claim 5 wherein the recharging function is enabled when the voltage level of the battery is below a maximum voltage threshold when in passive enablement mode.

7. The energy management system of claim 6 wherein a sleep mode is enabled when the voltage level of the battery is above the maximum voltage threshold and the temperature differential is less than the reference temperature when in passive enablement.

8. The energy management system of claim 4 wherein the preconditioning device is a blower motor.

9. The energy management system of claim 8 wherein the blower motor is passively enabled when the temperature differential is greater than the reference temperature.

10. The energy management system of claim 4 further comprising a portable device for communicating with the vehicle, wherein the portable device is used to remotely reconfigure the reference temperature for passive enablement of the distribution of electrical energy.

11. The energy management system of claim 10 wherein the portable device is used to remotely configure a time at which a preconditioning function is passively enabled.

12. The energy management system of claim 2 further comprising a portable device for wirelessly communicating with the vehicle, the portable device selectively communicating a command to actively actuate the enablement of electrical energy to the preconditioning device.

13. The energy management system of claim 12 further comprising a communication module on the vehicle in communication with the solar control module, wherein the communication module is in further communication with the portable device, wherein the portable communication device remotely reconfigures parameters for passively enabling the preconditioning function via the communication module.

14. The energy management system of claim 13 wherein the communication module is integrated with the solar control module.

15. The energy management system of claim 13 wherein the communication module is remote from the solar control module within the vehicle.

16. The energy management system of claim 2 further comprising a second switch controlled by the processor that is selectively actuated for distributing electrical energy from the energy storage device to the preconditioning device.

17. The energy management system of claim 16 wherein the processor controls the first switch and the second switch for selectively energizing the precondition device utilizing the electrical energy generated by the solar panel and electrical energy stored in the energy storage device.

18. The energy management system of claim 17 further comprising a third switch and a preheating device, wherein the third switch is controlled by the processor, and wherein the third switch is selectively actuated for distributing electrical energy from the energy storage device to the preheating device.

19. The energy management system of claim 1 wherein the processor monitors the vehicle driving status and solar energy availability for enabling the recharging function and preconditioning function.

20. The energy management system of claim 19 wherein the recharging function and preconditioning function are enabled concurrently.

21. The energy management system of claim 19 wherein the recharging function and preconditioning function are enabled individually.

22. The energy management system of claim 1 wherein the processor monitors the vehicle driving status and solar energy availability for enabling a sleep mode, wherein sleep mode is enabled when solar energy is unavailable from the solar panel array.