Method for operating a battery system

• US 9,944,195 B2
• Filed: 08/01/2014
• Issued: 04/17/2018
• Est. Priority Date: 08/05/2013
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Samsung SDI Company Limited
• Original Assignee: Robert Bosch GmbH, Samsung SDI Company Limited
• Inventors: Stimm, Frank, Steil, Michael, Doerr, Alfons, Bosch, Andreas
• Primary Examiner(s): Black, Thomas G
• Assistant Examiner(s): LOUIE, WAE LENNY
• Application Number:
  US14/910,014
• Publication Number:
  US 20160167541A1
• Time in Patent Office: 1,355 Days
• Field of Search: 701 22, 180 65265, 180 6529
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 15/2045 for optimising the use of energy
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60L 58/26 by cooling
• 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 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 2710/083 Torque
• CPC Class Codes: B60W 2710/244 Charge state
• CPC Class Codes: B60W 2710/246 Temperature
• CPC Class Codes: B60W 2710/248 Current for loading or unloading
• CPC Class Codes: G01C 21/3469 Fuel consumption; Energy use; Emission aspects
• 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
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y10S 903/907 : Electricity storage, e.g. battery, capacitor

Abstract

The disclosure relates to a vehicle architecture for controlling and regulating an electric drive of an electric or hybrid vehicle, having a power electronics system which is connected firstly to the electric drive and secondly to a battery or to a battery system. A battery management system is associated with the battery or the battery system. The vehicle architecture comprises a master controller or a controller which is equipped with a master functionality into which functionalities at least of the battery management system and of the power electronics system of the electric drive are exported.

Claims

1. A vehicle architecture for controlling and regulating an electrical drive of at least one of an electric vehicle and a hybrid vehicle, the vehicle architecture comprising:

power electronics connected to the electrical drive and to a battery system, the power electronics being configured to drive the electrical drive and control a torque of the electrical drive;

a battery management system that is assigned to the battery system, the battery management system configured to monitor the battery system and control a cooling system of the battery system; and

a master control device connected to the power electronics, the battery management system, and a navigation system, the master control device being configured to;

receive information from the navigation system;

operate the battery management system to control the cooling system based on the received information; and

operate the power electronics to reduce the torque of the electrical drive based on the received information.

2. The vehicle architecture as claimed in claim 1, wherein the master control device is configure operate the battery management system to control the cooling system in response to an outside temperature.

3. The vehicle architecture as claimed in claim 1, wherein the master control device is configured to operate the power electronics to reduce the torque of the electrical drive based on an expected route of the at least one of the electric vehicle and the hybrid vehicle.

4. The vehicle architecture as claimed in claim 1, wherein the master control device is configured to optimize a range for an expected route using the information from the navigation system by operating the battery management system to control the cooling system and operating the power electronics to reduce the torque of the electrical drive.

5. The vehicle architecture as claimed in claim 1, wherein the master control device configured to control at least one of the following vehicle components via additional connections:

an electrical air-conditioning system compressor;

an AC/DC converter;

at least one heating device;

a DC quick-charging interface; and

a DC/DC converter for a vehicle electrical system.

6. A method for controlling and regulating an electrical drive of at least one of an electric vehicle and a hybrid vehicle, the method comprising:

a) receiving information from a navigation system with a master control device of a vehicle architecture;

b) operating, with the master control device, a battery management system of the vehicle architecture to control a cooling system of a battery system based on the received information; and

c) operate, with the master control device, power electronics of the vehicle architecture to reduce a torque of the electrical drive based on the received information.

7. The method as claimed in claim 6, further comprising:

optimizing operation of the at least one of the electric vehicle and the hybrid vehicle using the information from the navigation system.

8. The method as claimed in claim 6, wherein the operating of the battery management system to control the cooling system and the operating of the power electronics of the vehicle architecture to reduce the torque of the electrical drive are performed based on at least one of a driver'"'"'s driving style and an expected driving situation.