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Electric automatic driving automobile brake energy monitoring device and method

A technology for automatic driving and automobile braking, which is applied in electric vehicles, electric braking systems, vehicle components, etc., and can solve the problems of complex composition of electronic devices and high requirements for functional safety.

Active Publication Date: 2020-09-18
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the more energy feedback links, the more complex the composition of electronic devices, the greater the possibility of failure, and the higher the requirements for functional safety

Method used

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  • Electric automatic driving automobile brake energy monitoring device and method
  • Electric automatic driving automobile brake energy monitoring device and method
  • Electric automatic driving automobile brake energy monitoring device and method

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Embodiment Construction

[0038] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention Creation and simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be und...

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Abstract

The invention provides an electric automatic driving automobile brake energy monitoring device conforming to function safety. The device comprises a main control module and a monitoring module, and ischaracterized in that the main control module comprises a brake control module, a safety deceleration monitoring module and a battery remaining capacity SOC monitoring module; the monitoring module comprises a main monitoring module, a current overcurrent monitoring module and a watchdog module. The requirement for functional safety can be met. Reasonable distribution of mechanical braking and regenerative braking is monitored, and unexpected insufficient braking force is prevented; when the automobile generates braking energy feedback, the residual electric quantity of the power supply battery is monitored, battery overcharge and instantaneous current overlarge are avoided, so that the automobile reaches a safe state in the braking process.

Description

technical field [0001] The invention belongs to the technical field of safety monitoring, and in particular relates to a braking energy monitoring device and method for an electric automatic driving vehicle. Background technique [0002] In the field of electric self-driving vehicles, using the energy generated by regenerative braking is an effective means to save energy and increase driving range, and has significant economic value and social benefits. The energy storage device of the electric drive system of a smart driving car is a power battery pack, but most batteries have low energy density and small energy storage, resulting in a short mileage of the car. In order to solve this problem, many smart driving cars are equipped with additional The auxiliary power supply is used as a power source for automotive electronic equipment. The traditional auxiliary power is mainly charged by the main power through a DC / DC converter, which not only increases the cost and complexit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/26B60L7/18
CPCB60L7/26B60L7/18
Inventor 李艳文王喜洋刘波雨李鸿鹏孙辰奚文霞王阳刘旭
Owner CHINA AUTOMOTIVE TECH & RES CENT
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