Test apparatus for checking a battery control device or a battery, and method for testing a battery control device or a battery

Patent metadata

Field	Value
Publication number	US-10551804-B2
Application number	US-201515535491-A
Country	US
Kind code	B2
Filing date	Nov 27, 2015
Priority date	Dec 17, 2014
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

The invention relates to a test apparatus for checking a battery control device or for checking a battery having at least one cell, comprising a battery simulator (18) for simulating a voltage of at least one cell of a simulated battery for specification on the battery control device, wherein the battery control device or the battery is connected to an evaluation module (14) via a rail designed as a central bus in order to process and check the voltage of a selected cell, wherein the selected cell of the battery simulator for the battery control device or the selected cell of the battery can be selected via a separation module (24). In this way, a test apparatus for checking a battery control device or for checking a battery can be provided, which has a simple construction and can check all of the cells of a simulated or actual battery in a simple manner.

First claim

The invention claimed is:

1. A test apparatus for checking a battery control device or for checking a battery having at least one cell, comprising a battery simulator ( 18 ) for simulating a voltage of at least one cell of a simulated battery for specification of the battery control device, characterized in that the battery control device or the battery is connected to an evaluation module ( 14 ) via a rail designed as a central bus in order to process and check the voltage of a selected cell, wherein the selected cell of the battery simulator ( 18 ) for the battery control device or the selected cell of the battery is selected via an isolating module ( 24 ); and wherein a voltage of a selected cell of the battery simulator or the battery is changed via a resistor network ( 16 ) having at least one controllable optical field effect transistor.

2. The test apparatus as claimed in claim 1 , characterized in that the processing and checking by the evaluation module ( 14 ) is coordinated via a control module ( 26 ).

3. The test apparatus as claimed in claim 2 , characterized in that the evaluation module ( 14 ) is connected to a temperature module ( 20 ) for detecting at least one temperature measured by the battery control device or a temperature of at least one cell of the battery.

4. The test apparatus as claimed in claim 1 , characterized in that a value for a balancing current in the charging direction of the cell or in the discharging direction of the cell is specified via the evaluation module ( 14 ), wherein the evaluation module ( 14 ) controls the balancing current for each cell of the battery simulator ( 18 ) for the battery control device or for each cell of the battery, independently of an adjacent cell.

5. The test apparatus as claimed in claim 1 , characterized in that the evaluation module ( 14 ) comprises a capacitor for the intermediate storage of a voltage for a balancing current.

6. The test apparatus as claimed in claim 1 , characterized in that the battery simulator ( 18 ) has a matrix for assigning a supply voltage for the monitoring device of the battery control device.

7. The test apparatus as claimed in claim 1 , characterized in that a specification of temperatures for selected cells as voltage or resistance values with feedback is generated by the evaluation module ( 14 ).

8. The test apparatus as claimed in claim 1 , characterized in that a control module ( 26 ) comprises a communication unit for communication with an external operating element.

9. A method for testing a battery control device or for testing a battery in a test apparatus having a battery simulator ( 18 ) for simulating a voltage of at least one cell of a simulated battery for specification of the battery control device, wherein the battery control device or the battery is connected to an evaluation module ( 14 ) via a rail designed as a central bus in order to process and check the voltage of a selected cell, including the following steps of:
connecting the battery control device to the test apparatus or connecting a battery having at least one cell to the test apparatus; and
processing or checking the battery control device or the battery via the evaluation module ( 14 ) of the test apparatus;
wherein the selected cell of the battery simulator ( 18 ) for the battery control device or the selected cell of the battery is selected via an isolating module ( 24 ); and
wherein a voltage of a selected cell of the battery simulator or the battery is changed via a resistor network ( 16 ) having at least one controllable optical field effect transistor.

10. The method as claimed in claim 9 , further comprising the following step of:
adjusting a balancing current for at least one selected cell of the battery simulator ( 18 ) or the battery, independently of an adjacent cell.

Assignees

• Bosch Gmbh Robert

Inventors

• Hoenig Guenter
• Mattes Bernhard
• Roth Manuel
• Thomas Robert

Classifications

• G01R35/00

  Testing or calibrating of apparatus covered by the other groups of this subclass · CPC title

• G01R31/396

  Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery · CPC title

• H01M10/4207

  for several batteries or cells simultaneously or sequentially · CPC title

• G01R31/367 Primary

  Software therefor, e.g. for battery testing using modelling or look-up tables · CPC title

• G05B13/041 Primary

  in which a variable is automatically adjusted to optimise the performance · CPC title