A device and method for protecting a high-voltage battery power system
A high-voltage battery, power system technology, applied in emergency protection circuit devices, power devices, emergency protection devices with automatic disconnection, etc., can solve problems such as electric shock danger
Active Publication Date: 2019-04-12
QOROS
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Problems solved by technology
In addition, if both the positive high-voltage contactor S1 and the negative high-voltage contactor S2 have welding failures, the high-voltage battery power system will always be in a state of power, posing a potential electric shock hazard
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[0057] The device and method for protecting the high-voltage battery power system in this embodiment of the present invention will be further described in detail in conjunction with the drawings and specific embodiments of the description below, but the detailed description does not constitute a limitation of the present invention .
[0058] figure 2 It shows a schematic diagram of the device for protecting a high-voltage battery power system according to the present invention in an implementation manner. Such as figure 2 As shown, the device for protecting the high-voltage battery power system in this embodiment includes: a detection device, the detection device includes a logic OR gate, which has a logic signal output terminal and two logic signal input terminals, including a first logic A signal input terminal and a second logic signal input terminal, the detection device also includes a controller of the vehicle battery management system, the input terminal of which is...
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The invention discloses a device and method for protecting a high voltage battery electricity usage system. The device comprises a detection device and a contactor control switch. The detection device has an output terminal and at least two signal input terminals for receiving a fault signal of a high voltage contactor, wherein at least two input terminals respectively receive faults signals which respectively characterize fault signals of a positive electrode high voltage contactor and a negative electrode high voltage contactor; the detection device is configured in a manner that: when at least one of the at least two signal input terminals receives the fault signal, a cut-off operation order is outputted from the output terminal; the controller control switch is connected between the high voltage contactor and a high voltage contactor power supply; the control switch is connected to the output terminal of the detection device in order to cut off the power supply to the high voltage contactor by the high voltage contactor power supply after receiving the cut-off operation order. Correspondingly, the invention discloses a method for protecting the high voltage battery electricity usage system.
Description
technical field [0001] The invention relates to a protection device and method for a power consumption system, in particular to a device and a method for protecting a high voltage battery power consumption system. Background technique [0002] Passenger vehicles often include batteries for operating the vehicle's electrical system and drivetrain. For example, in a hybrid electric vehicle (“HEV”), a plug-in hybrid electric vehicle (“PHEV”), a fuel cell electric vehicle (“FCEV”), or a pure electric vehicle (“EV”), a high voltage battery can be used to Provides power to the electric or powertrain components of the vehicle. High voltage batteries store high voltage electrical energy that can be delivered to vehicle systems via a high voltage bus with positive and negative leads or rails. The high voltage battery may be selectively coupled to positive and negative leads or rails via one or more selectively switched contactors. However, because the high-voltage battery provides...
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IPC IPC(8): H02H3/00B60L3/04
Inventor 王刚彦斯·贝肯
Owner QOROS