A power switching device and vehicle
A power switching and power converter technology, applied in the direction of circuit devices, emergency protection circuit devices, emergency power arrangements, etc., can solve the problem that the response rate of the vehicle power system cannot be further reduced
Active Publication Date: 2021-05-25
广州创锐车用电器有限公司
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[0003] In the prior art, in the design of the vehicle power supply system, the signal of the power collection point is fed back to the vehicle MCU (Microcontroller Unit, micro control unit) for calculation and judgment, so as to detect whether there is an abnormality in the vehicle power supply system, and if there is an abnormality, then Switch the main power supply to the backup power supply to ensure the normal operation of the vehicle; however, the MCU calculation takes a certain amount of time, which cannot further reduce the response rate of the vehicle power system, making it difficult to timely warn and deal with the abnormality of the vehicle power system
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[0039] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
[0040]It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.
[0041] The power switching device provided by the embodiment of the present application can be applied to the power supply system of a vehicle. When the main power supply fails or is abnormal, the main power supply is switched to a backup power supply, thereby ensuring the safe operation of the vehicle. The power switching device includes a hardware feedback mo...
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Embodiments of the present application provide a power switching device and a vehicle, which relate to the technical field of electronic control. The power switching device includes a power module, a first conversion module, a second conversion module, and a hardware feedback module; the power module is used to provide power; the first conversion module is respectively connected to the power module for conversion The voltage of the power supply module is used to supply power to the module to be powered; the second conversion module is respectively connected to the power supply module, and is used to convert the voltage of the power supply module when the first conversion module is abnormal to supply power to the power supply module. The module to be powered is powered; the hardware feedback module is connected to the first conversion module and the second conversion module respectively, and is used to collect the status signal of the first conversion module. When the status signal is abnormal, disconnect the the first conversion module, and connect the second conversion module to supply power to the module to be powered. The device can effectively improve the reliability and safety of the power switching device.
Description
technical field [0001] The present application relates to the technical field of electronic control, in particular, to a power switching device and a vehicle. Background technique [0002] At present, the electronic control unit of the vehicle power supply system has the characteristics of randomness and large error fluctuations in the errors and failures of the components under different working conditions. The design of the on-board power supply system is a very important part of the system design of automotive products. In addition to meeting the input and output power requirements and EMC (External Memory Controller, external memory controller) related electrical requirements under normal conditions, it is also necessary to ensure that the on-board power supply system Work in a safe state. [0003] In the prior art, in the design of the vehicle power supply system, the signal of the power collection point is fed back to the vehicle MCU (Microcontroller Unit, micro contr...
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IPC IPC(8): H02J9/06H02H9/04
CPCH02H9/04H02H9/042H02J9/061
Inventor 黄楚羽黄玉军梁恩清夏棵谭清源陈运敏李垣燊
Owner 广州创锐车用电器有限公司