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A battery temperature sampling system and automobile

A sampling system, battery temperature technology, applied in electric vehicles, thermometers, thermometer parts, etc., can solve problems such as inability to diagnose in time, safety accidents, etc.

Active Publication Date: 2021-09-14
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] ISO 26262 has strict test requirements for faults such as sensor out-of-range, offset, stuck within range, oscillation, etc. Traditional temperature sampling schemes do not fully consider systematic failures and random hardware rate failures, but only do simple faults Diagnosis, if there is a problem with the temperature sensor or the sampling of the temperature sensor, it cannot be diagnosed in time or has an alternative solution, which is likely to lead to serious safety incidents

Method used

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  • A battery temperature sampling system and automobile

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Embodiment Construction

[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0037] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The present invention provides a battery temperature sampling system and an automobile. The battery temperature sampling system includes: a first temperature sensor for collecting first temperature information at a preset position of the battery; a second temperature sensor for collecting the temperature information of the battery Second temperature information at a preset position; a sampling circuit connected to the second temperature sensor, the sampling circuit is used to obtain the second temperature information, and convert the second temperature information into a digital signal The second temperature detection signal; the battery management unit, the battery management unit is electrically connected to the first temperature sensor and the sampling circuit respectively, and determines the The real-time temperature of the battery. Through the two channels of acquisition, and the principles of the acquisition of the two channels of temperature information are different, common cause failures are avoided, and the safety of temperature acquisition is improved.

Description

technical field [0001] The invention relates to the battery field, in particular to a battery temperature sampling system and an automobile. Background technique [0002] The biggest factor affecting the growth rate of electric vehicles is the battery, and the battery temperature sensor has a key impact on the overall performance of the battery. Whether the battery can be continuously charged and can operate normally depends on the accuracy and reliability of the temperature sensor measurement data. . The battery temperature sensor plays an important role in the overall performance of the battery. Whether the battery can be continuously charged, whether it can operate normally, and the safety of the battery depends on the accuracy and reliability of the battery temperature sensor measurement. [0003] Automotive Safety Integrity Level ISO 26262 is based on IEC61508 and written to meet the requirements of specific electrical and electronic systems on road vehicles. Safety i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K1/02G01K1/022G01K1/024B60L58/24
CPCG01K1/026Y02T10/70
Inventor 梁瑞代康伟张骞慧侯金钢温晨
Owner BEIJING ELECTRIC VEHICLE
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