Device for energizing, method for supplying at least one electrical consumer and vehicle

By using a series battery system and switching device in the vehicle, the problem of redundant power supply in the event of battery failure in the vehicle's electrical grid is solved, ensuring the normal operation of critical power consumers and improving the vehicle's safety and reliability.

CN115989157BActive Publication Date: 2026-06-19KNORR BREMSE SYSTEME FUER NUTZFAHIZEUGE GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KNORR BREMSE SYSTEME FUER NUTZFAHIZEUGE GMBH
Filing Date
2021-08-13
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, the vehicle's onboard electrical network lacks an effective redundant power supply scheme when the battery fails, which may cause the power consumer to fail to operate normally, affecting the vehicle's safety and reliability.

Method used

Two battery systems are connected in series, and the battery connection mode is switched in case of failure through a fault identification device and a switching device to ensure that at least one battery can continue to supply power to the power consumers, including key components such as the controller and engine starter.

Benefits of technology

Even in the event of battery failure, it can still provide power to critical power consumers, ensuring safe vehicle operation and redundant power supply, avoiding the need for additional batteries or DC/DC converters, and improving the availability of the vehicle's electrical grid.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present invention relates to a power supply device (102) for a vehicle (100), the device comprising a first battery (122), a second battery (123), a fault identification device (120) for identifying a faulty state of at least one of the batteries (122, 123), and a switching device (118) having four battery interfaces (130, 132, 134, 136) and a consumer interface (112) for connecting at least one power consumer (104, 108) to the device (102). The first battery interface (130) is connected to a first electrode of the first battery (122), the second battery interface (132) is connected to a second electrode of the first battery (122), the third battery interface (136) is connected to a first electrode of the second battery (123), and the fourth battery interface (138) is connected to a second electrode of the second battery (123). The switching device (118) is configured to connect the second battery interface (132) to the third battery interface (134) in a normal state and to disconnect the second battery interface (132) from the third battery interface (134) and connect the second battery interface (132) or the fourth battery interface (138) to the consumer interface (112) in an emergency state.
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