A vehicle active speed limit controller

A technology for controllers and automobiles, applied in the direction of non-electric variable control, speed/acceleration control, control devices, etc., can solve the problems of large vehicle transformation and difficult implementation, and achieve the effects of avoiding overspeed, reducing traffic accidents, and facilitating implementation

Active Publication Date: 2019-06-21
合肥中科智驰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing active speed limit schemes for automobiles generally directly control the fuel injection volume, oil pump, throttle opening and even the ABS system. , will have extremely serious consequences

Method used

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  • A vehicle active speed limit controller
  • A vehicle active speed limit controller

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Embodiment Construction

[0029] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] In this embodiment, an active speed limit controller for automobiles is applied to automobiles equipped with electronic accelerator pedals and automatic transmissions, such as figure 1 As shown, the automobile active speed limit controller includes: AD conversion module, CAN interface module, calculation module, DA conversion module, relay, switch S and voice prompt module;

[0031] The AD conversion module has two channels AD1 and AD2, which respectively collect two analog signals of electronic accelerator pedal PPS1 and PPS2 and convert them into two digital signals;

[0032] The CAN interface module is connected to the CAN bus of the vehicle body, and is used to read the vehicle speed V and the maximum speed limit signal Vm from the CAN bus of the vehicle body and provide them to the calculation module; there are generally two ways t...

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Abstract

The invention discloses an automobile active speed limiting controller. The automobile active speed limiting controller comprises an AD conversion module, a CAN interface module, an operation module,a DA conversion module, a relay, a switching switch and a voice prompting module. The AD conversion module collects an electronic accelerator pedal signal, and the CAN interface module reads the automobile speed and a maximum speed limiting signal; the operation module calculates the accelerator correction amounts which are added together with the electronic accelerator pedal signal correspondingly, and a corrected electronic accelerator signal is obtained; the DA conversion module outputs the corrected electronic accelerator signal; the normally-closed contact of the relay is connected with an electronic accelerator pedal signal line, the normally-open contact is connected with the output of the DA conversion module, and a control coil is controlled through the switching switch; the output of the relay is the final output of the automobile active speed limiting controller; and the voice prompting module issues a corresponding voice prompt according to the overspeed condition. According to the automobile active speed limiting controller, speed limiting of the vehicles can be achieved by reducing transformation of the vehicles, and breakdown isolation is convenient.

Description

technical field [0001] The invention relates to an automobile active speed limit controller, which belongs to an automobile active safety device. Background technique [0002] Traffic regulations have strict speed limit requirements on urban roads. Speeding is a traffic violation that poses a greater threat to the safety of life and property of oneself and other traffic participants. Studies have shown that about 30% of fatal traffic accidents are related to speeding, ranking second among all factors. [0003] The existing active speed limit schemes for automobiles generally directly control the fuel injection volume, oil pump, throttle opening and even the ABS system. , will have extremely serious consequences. Contents of the invention [0004] In order to overcome the deficiencies in the prior art, the present invention provides an active speed limit controller for automobiles, in order to realize the speed limit of the vehicle without modifying the vehicle, and to fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K31/00
CPCB60K31/00B60K2031/0091
Inventor 江如海袁胜
Owner 合肥中科智驰科技有限公司
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