Method of managing the charging of a traction battery and corresponding devices

• US 9,827,859 B2
• Filed: 03/11/2013
• Issued: 11/28/2017
• Est. Priority Date: 04/03/2012
• Status: Active Grant

• Current Assignee: Ampere SAS
• Original Assignee: Renault Sas (Renault)
• Inventors: Quetant, Eudes, Goutal, Virginie, Ripoll, Christophe, Chauvelier, Eric
• Primary Examiner(s): Shaawat, Mussa A
• Application Number:
  US14/390,491
• Publication Number:
  US 20150120112A1
• Time in Patent Office: 1,723 Days
• CPC Class Codes: B60H 1/00385 for vehicles having an electrical drive, e.g. hybrid or fuel cell
• CPC Class Codes: B60H 1/3208 Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
• CPC Class Codes: B60H 2001/3266 related to the operation of the vehicle
• CPC Class Codes: B60H 2001/3273 related to the operation of the vehicle, e.g. the compressor driving torque
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 1/02 to electric heating circuits
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2240/34 Cabin temperature
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/662 Temperature
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 53/00 Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/50 Charging stations characterised by energy-storage or power-generation means
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: B60L 58/27 by heating
• CPC Class Codes: B60W 10/26 : for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: B60W 10/30 : including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 20/13 : in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
• CPC Class Codes: B60W 2555/20 : Ambient conditions, e.g. wind or rain
• CPC Class Codes: B60W 2710/305 : target power to auxiliaries
• CPC Class Codes: H01M 10/44 : Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/613 : Cooling or keeping cold
• CPC Class Codes: H01M 10/625 : Vehicles
• CPC Class Codes: H01M 10/6569 : Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation heat pipes H01M10/6552
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• 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 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles

Abstract

A method of managing charging of a traction battery and corresponding devices, the traction battery including a thermal regulating system, the thermal regulating system including a compressor, the method including transmitting information between a control device for the compressor and a device for managing the charging of the traction battery, before activating the compressor or before activating a device for charging the traction battery.

Claims

1. A method of managing charging of a traction battery of a vehicle having a heat regulating system including a compressor, the method comprising:

monitoring, via a control device of the compressor, a status of the compressor;

transmitting, via the control device, information of the status of the compressor, before activating the compressor or before activating charging of the traction battery, between the control device and a charging management device for managing charging of the traction battery;

or

transmitting, via the charging management device, information of a charging status, before activating the compressor or before activating charging of the traction battery, between the charging management device and the control device; and

controlling, based on the transmitted information, at least one of the compressor and the charging of the traction battery.

2. The method of managing charging as claimed in claim 1, further comprising:

providing electrical isolation between the compressor and an external supply network configured to charge the traction battery when the information is representative of an imminent activation of the compressor.

3. The method of managing charging as claim in claim 1, further comprising:

interrupting or postponing the charging of the traction battery for at least a first predetermined duration when information is representative of an imminent activation of the compressor.

4. The method of managing charging as claimed in claim 3, wherein the first predetermined duration is a function of at least one of an external temperature and current speed of the compressor.

5. The method of managing charging as claimed in claim 3, wherein the first predetermined duration is incremented by a duration required by a motor of the compressor to reach a predetermined minimum speed which is a function of an external temperature.

6. The method of managing charging as claimed in claim 3, wherein, when the compressor requires plural activations to meet a requirement of the heat regulating system, the charging of the traction battery is uninterrupted after a predetermined number of activations of the compressor.

7. The method of managing charging as claimed in claim 3, wherein the control device of the compressor sets a minimum speed at a motor of the compressor, the minimum speed being a function of an external temperature.

8. The method of managing charging as claimed in claim 3, further comprising:

delaying, after transmitting the information, the activation of the compressor for a second predetermined duration which is shorter than the first predetermined duration, and

transmitting information representative of an advanced state of activation of the compressor at an end of the first predetermined duration.

9. The method of managing charging as claimed in claim 3, wherein the transmitting information is preceded by an interrogation about a state of the compressor by the charging management device, and the first predetermined duration is supervised by the charging management device.

10. The method of managing charging as claimed in claim 2, further comprising:

disabling the compressor after the electrical isolation and until an end of charging the traction battery.

13. A non-transitory computer readable medium having computer readable instructions thereon which when executed by a computer cause the computer to perform a method as claimed in claim 1.

11. A device for managing charging of a traction battery of a vehicle having a heat regulating system including a compressor, the device comprising:

a charging management device for managing charging of the traction battery and configured to

receive, from a control device of the compressor and before activating charging the traction battery, a status of the compressor monitored by the control device, and

control, based on the received information, the charging of the traction battery,

wherein the control device controls the compressor based on the status of the compressor.

12. A device for controlling a compressor of a vehicle, comprising:

a control device configured to

monitor a status of the compressor,

transmit, before activating the compressor and before activating charging the traction battery, information of the status of the compressor to a charging management device that manages charging of the traction battery of the vehicle based on the status, and

control the compressor based on the status of the compressor,

wherein the charging management device is configured to control the charging of the traction battery based on the status of the compressor.