Method for operating an assistance system of a vehicle with at least one electrical energy store

• US 10,220,819 B2
• Filed: 06/26/2015
• Issued: 03/05/2019
• Est. Priority Date: 07/24/2014
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Krieg, Berengar
• Primary Examiner(s): Dunn, Alex C
• Application Number:
  US15/327,884
• Publication Number:
  US 20170203739A1
• Time in Patent Office: 1,348 Days
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/60 Navigation input
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• 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 3/06 Limiting the traction current under mechanical overload conditions
• CPC Class Codes: B60L 50/50 using propulsion power supplied by batteries or fuel cells
• CPC Class Codes: B60L 50/60 using power supplied by batteries in combination with fuel cells B60L50/75
• CPC Class Codes: B60L 58/24 for controlling the temperature of batteries
• CPC Class Codes: B60Q 9/00 Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 , e.g. haptic signalling
• CPC Class Codes: B60T 7/12 for automatic initiation; for initiation not subject to will of driver or passenger limiting speed of vehicles other than rail vehicles B60K31/00
• CPC Class Codes: G01C 21/28 with correlation of data from several navigational instruments
• CPC Class Codes: G01S 19/17 Emergency applications
• CPC Class Codes: G01S 19/46 the supplementary measurement being of a radio-wave signal type
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 12/08 composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H04W 4/021 Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]
• CPC Class Codes: H04W 4/44 : for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
• CPC Class Codes: H04W 4/90 : Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• 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

Abstract

Method for operating an assistance system of a vehicle with at least one electrical energy store, comprising the following steps: —detecting a temperature of the electrical energy store of the vehicle by means of at least one first sensor, —identifying an operating state of the electrical energy store by means of the detected temperature of the electrical energy store by a control unit, —determining the position of the vehicle and/or detecting an operating parameter of the vehicle more particularly by means of at least one second sensor, communicating the operating state to the assistance system of the vehicle, wherein at least one signal is generated by the assistance system in the case of an abnormal operating state of the electrical energy store if the position of the vehicle is within a predefinable geographical area.

Claims

1. A method for operating an assistance system of a vehicle having at least one electrical energy store, the method comprising:

detecting a temperature of the electrical energy store of the vehicle by means of at least one first sensor;

identifying, with a control unit, an operating state of the electrical store using the detected temperature of the electrical energy store;

determining a position of the vehicle, detecting an operating parameter of the vehicle, or both by means of at least one second sensor;

transmitting the operating state to the assistance system of the vehicle; and

in the event of an abnormal operating state of the electrical energy store, generating at least one signal if the position of the vehicle lies within a definable geographic region, wherein the at least one signal prevents restarting of the drive system of the vehicle as long as the electrical energy store is in an abnormal operating state and the position of the vehicle lies within the definable geographic region.

2. The method as claimed in claim 1, characterized in that the signal initiates an instantaneous intervention for reducing a speed of the vehicle.

3. The method as claimed in claim 1, characterized in that the signal initiates deceleration of the vehicle by means of a braking intervention.

4. The method as claimed in claim 1, characterized in that the signal initiates isolation of the electrical energy store from a drivetrain of the vehicle.

5. The method as claimed in claim 1, characterized in that the signal initiates an emergency running mode of the vehicle at a reduced drive power.

6. The method as claimed in claim 1, characterized in that the signal initiates switching-on a hazard warning system of the vehicle.

7. The method as claimed in claim 1, characterized in that the signal initiates an emergency call to an emergency call center.

8. The method as claimed in claim 1, characterized in that the signal triggers at least one selected from the group consisting of a visual, acoustic and haptic warning to a driver of the vehicle.

9. The method as claimed in claim 1, characterized in that the signal is transmitted by wired means, by and/or wireless means, or a combination of both.

10. The method as claimed in claim 1, characterized in that the position of the vehicle is determined using a satellite-based technique, a cellular-network based technique, or a combination of both by means of a control unit of the vehicle, by means of a navigation system of the vehicle, by means of a smartphone of the driver, or a combination of both.

11. The method as claimed in claim 1, characterized in that the operating parameter is selected from the group consisting of the speed of the vehicle, a wheel speed, an instantaneous request by the driver of the vehicle, a charging or discharging current of the electrical energy store, an external temperature, a steering angle, a transverse acceleration of the vehicle, and a combination of two or more of the foregoing.

12. An assistance system comprising at least one control unit, the control unit configure to

detect a temperature of the electrical energy store of a vehicle by means of at least one first sensor;

identify, with a control unit, an operating state of the electrical store using the detected temperature of the electrical energy;

determine a position of the vehicle, detecting an operating parameter of the vehicle, or both by means of at least one second sensor;

transmit the operating state to the assistance system of the vehicle; and

in the event of an abnormal operating state of the electrical energy store, generate at least one signal if the position of the vehicle lies within a definable geographic region, and wherein the at least one signal prevents restarting of the drive system of the vehicle as long as the electrical energy store is in an abnormal operating state and the position of the vehicle lies within the definable geographic region.

13. The assistance system of claim 12, wherein the vehicle having at least one selected from the group consisting of a lithium-ion battery, a lithium-sulfur battery, and a lithium-air battery.