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Signal detection circuit, DC/DC converter, detection method, and storage medium

A technology of DC converter and signal detection, which is applied in the field of automobile safety, can solve problems such as waste of resources, achieve the effects of simple structure, wide application range, and improved diagnostic coverage

Pending Publication Date: 2021-08-24
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the problem of waste of resources in the existing full redundancy scheme in the prior art, and provide a signal detection circuit, DC / DC converter, detection method and storage medium with high diagnostic coverage and lower cost , able to increase the diagnostic coverage of safety mechanisms at a lower cost

Method used

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  • Signal detection circuit, DC/DC converter, detection method, and storage medium
  • Signal detection circuit, DC/DC converter, detection method, and storage medium
  • Signal detection circuit, DC/DC converter, detection method, and storage medium

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Embodiment Construction

[0062] In order to make the purpose, advantages and features of the present invention clearer, the signal detection circuit, DC / DC converter, detection method and storage medium proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. It should be understood that the drawings in the specification do not necessarily show the specific structure of the invention to scale, and that the illustrative features used to illustrate some principles of the invention in the drawings in the specification are also drawn in a somewhat simplified manner. The specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations and shapes will be determined i...

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Abstract

The invention provides a signal detection circuit, a DC / DC converter, a detection method and a storage medium. The signal detection circuit comprises a current detection resistor, a first signal acquisition processing sub-circuit, a second signal acquisition processing sub-circuit and a diagnosis verification unit. The first signal acquisition processing sub-circuit is used for acquiring a first current signal of the current detection resistor; the second signal acquisition processing sub-circuit is used for acquiring a second current signal of the current detection resistor; the diagnosis and verification unit is used for diagnosing failure modes of the current detection resistor, the first signal acquisition and processing sub-circuit and the second signal acquisition and processing sub-circuit according to the first current signal and the second current signal; and the failure mode comprises a signal fault type which needs to be covered by the ASIL D. The signal detection circuit provided by the invention is simple in structure and easy to implement; and according to the signal detection circuit, the DC / DC converter, the detection method and the storage medium provided by the invention, the diagnosis coverage rate of a safety mechanism can be improved at relatively low cost.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a signal detection circuit, a DC / DC converter, a detection method and a storage medium. Background technique [0002] As the core component of hybrid electric vehicles, the on-board DC / DC converter is used to convert high-voltage direct current into 12V direct current and supply power to 12V loads. see figure 1 , figure 1 Schematic diagram of the structure of the power supply network for electric vehicles. From figure 1 It can be seen from the figure that the electric vehicle power supply network includes a HV voltage network 110, a 12V voltage network 130, and a DC / DC converter 120 for connecting the HV voltage network 110 and the 12V voltage network 130; wherein, the HV voltage network 110 includes a motor 111 and HV battery 112; the load terminal 12V voltage network 130 includes a 12V load 131, a 12V battery 132 and a starter 133 (optional). In new energy vehicl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25
CPCG01R19/25
Inventor 孔凡胜明月
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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