Battery management system and battery system
A storage battery and single-cell technology, which is applied in the direction of battery/fuel cell control devices, battery disconnect circuits, battery circuit devices, etc., and can solve the problems of increased complexity of regulation circuit performance, complexity of regulation circuits, small scalability, etc. question
Active Publication Date: 2015-08-12
ROBERT BOSCH GMBH +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0006] The use of other diagnostic systems or other diagnostic programs has the disadvantage that the complexity of such a control circuit, in particular for maintaining the performance of such a control circuit, increases
When transmitting all operating parameters obtained from the cell monitoring unit via the communication bus to the battery control unit, the redundancy necessary for safety-related reasons has the additional disadvantage that the communication bus is heavily utilized
Furthermore, as a further disadvantage, such regulation circuits have little scalability
Method used
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Embodiment Construction
[0022] exist figure 1 In the shown battery, a plurality of battery cells 1 are connected together to form a rechargeable battery. In this case, the battery cells 1 can be electrically decoupled from the pole connections 3 of the battery and thus from the electrical load or from the charging device for charging the battery via the switching elements 2 designed as contactors. According to a variant of the invention, which is not shown, it is provided that individual battery cells or small groups of battery cells, for example groups of four battery cells, can also be disconnected from the battery via corresponding switching elements, preferably at Corresponding switching elements are arranged between the individual battery cells, and for bridging the battery cells a parallel circuit is provided which is respectively equipped with switching elements.
[0023] figure 1 The battery system shown in has a regulating circuit for monitoring and regulating the operation of the recharge...
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The invention relates to a control circuit for monitoring and controlling the operation of a rechargeable battery, in particular a lithium- Ion battery, comprising a plurality of interconnected battery cells (1) which are connected to at least one pol connection (3) of the battery by at least one circuit element (2) such that it can be electrically decoupled (2). Said control circuit comprises at least one first cell monitoring device (4) and at least one second cell monitoring device (5) which are designed to detect operational parameters of at least one battery cell (1) and to guide them to a control device. The at least one first cell monitoring device (4) is connected to a first control device (12) by means of a first interface (7), and the at least one second cell monitoring device (5) is connected to a second control device (13) by means of a second interface (8). The first control device (12) is designed to determine battery properties by evaluating captured operational parameters. The second control device (13) is designed to control the at least one circuit element (2). The invention also relates to a battery system comprises the claimed control circuit.
Description
technical field [0001] The invention relates to a regulating circuit, in particular a battery management system, for monitoring and regulating the operation of a rechargeable battery, in particular a lithium-ion battery, which has a plurality of interconnected battery cells, the batteries The cells are electrically decoupled via at least one switching element to at least one pole connection of the accumulator, wherein the regulating circuit has at least one first cell monitoring device and at least one second cell monitoring device, the cells The cell monitoring devices are each designed to detect operating parameters of at least one battery cell and forward them to the control device. [0002] Furthermore, the invention relates to a battery system comprising a rechargeable battery having a plurality of interconnected battery cells which are connected to at least one pole of the battery via at least one switching element The terminals are connected electrically decoupled, and...
Claims
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IPC IPC(8): H01M2/34B60L11/18H01M10/42H01M10/48H02J7/00G01R31/36H01M50/574
CPCH01M10/425H01M10/482B60L11/1857H01M2010/4271B60L11/1855G01R31/3606Y02T10/7044H01M2/34B60L11/1862B60L2240/547H02J7/0031G01R31/3658Y02T10/705B60L3/0046B60L2240/545B60L2250/10H01M2200/00B60L11/1851B60L2240/549Y02T10/7011Y02T10/7005B60L3/04G01R31/396B60L58/19B60L58/16B60L58/13G01R31/382H01M50/574H02J7/0013B60L58/12B60L58/21Y02T10/70Y02E60/10H02J7/005H02J7/0049
Inventor S·布茨曼
Owner ROBERT BOSCH GMBH