Invention Grant
US09383415B2 Battery system having battery contactors and a diagnostic device for monitoring the functional state of the contactors and associated diagnostic method
有权
具有电池接触器的电池系统和用于监测接触器的功能状态的诊断装置和相关联的诊断方法
- Patent Title: Battery system having battery contactors and a diagnostic device for monitoring the functional state of the contactors and associated diagnostic method
- Patent Title (中): 具有电池接触器的电池系统和用于监测接触器的功能状态的诊断装置和相关联的诊断方法
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Application No.: US13950678Application Date: 2013-07-25
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Publication No.: US09383415B2Publication Date: 2016-07-05
- Inventor: Chrysanthos Tzivanopoulos
- Applicant: Robert Bosch GmbH , Samsung SDI Co., Ltd.
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Maginot, Moore & Beck LLP
- Priority: DE102012213159 20120726
- Main IPC: G01N27/416
- IPC: G01N27/416 ; G01R31/36 ; G01R31/327 ; H01M10/42 ; H01M10/48
Abstract:
A battery system comprises a battery including a plurality of battery cells and can be connected on an input side to a direct voltage intermediate circuit via at least one contactor, and a diagnostic device configured to diagnose a state of the at least one contactor. The battery system includes a monitoring circuit with a first branch in which the at least one contactor is arranged, and a second branch which is connected parallel thereto and in which a voltage source configured to generate a reference voltage is connected. The diagnostic device is arranged so as to evaluate a diagnostic current which is dependent on the reference voltage and flows in the monitoring circuit, and serves to determine a fault state of the at least one contactor based on a measured current value or a current profile of the diagnostic current.
Public/Granted literature
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