Automobile speed collection device

A collection device and vehicle speed technology, which is applied in the field of vehicle speed collection devices, can solve the problem of single signal collection method, and achieve the effect of solving the single signal collection method

Inactive Publication Date: 2017-08-29
AEROSPACE HI TECH HLDG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the signal acquisition mode of the existing vehicle speed signal acquisition device is single, the present invention proposes a vehicle speed acquisition device

Method used

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  • Automobile speed collection device

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Embodiment 1

[0019] Embodiment one: the following combination figure 1 This embodiment will be described in detail.

[0020] The vehicle speed acquisition device described in this embodiment includes:

[0021] The vehicle speed sensing module is used to convert the rotational speed of the output shaft of the automobile gearbox into an electrical signal;

[0022] The first vehicle speed calculation module is used to calculate the vehicle speed according to the electrical signal sent by the vehicle speed sensing module;

[0023] The wheel speed sensing module is used to convert the speed of the car wheel into an electrical signal;

[0024] The second vehicle speed calculation module is used to calculate the vehicle speed according to the electrical signal sent by the wheel speed sensing module;

[0025] GPS speed measurement module, used to measure vehicle speed based on GPS speed measurement principle;

[0026] The speed measurement mode automatic selection module is used to turn on the...

Embodiment 2

[0032] Embodiment 2: This embodiment further limits the vehicle speed collection device described in Embodiment 1.

[0033] In the vehicle speed acquisition device described in this embodiment, the second vehicle speed calculation module is connected to the vehicle speed display module through a CAN bus.

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Abstract

The invention discloses an automobile speed collection device, belongs to the field of automobile speed measurement, and solves a problem that the number of signal collection modes of a conventional vehicle speed signal collection device is very small. The device operates in a manner that a first vehicle speed calculation module calculates a vehicle speed according to an electric signal transmitted by a vehicle speed sensing module; a second vehicle speed calculation module calculates the vehicle speed according to an electric signal transmitted by a wheel speed sensing module; and a GPS speed measurement module measures the vehicle speed based on the GPS speed measurement principle. The vehicle speed sensing module, the wheel speed sensing module and the GPS speed measurement module achieve the collection of multichannel vehicle speed signals. A speed measurement mode automatic selection module intelligently selects a vehicle speed collection mode according to a preset priority, wherein the priority from the top to the bottom is a vehicle speed sensing module speed measurement mode, a wheel speed sensing module speed measurement mode and a GPS speed measurement mode. A speed measurement mode selection module is used for achieving the switching of manual selection and intelligent switching of vehicle speed collection. The device provided by the invention is suitable for the diversified collection of the vehicle speed of an automobile.

Description

technical field [0001] The invention relates to a vehicle speed acquisition device, which belongs to the field of vehicle speed measurement. Background technique [0002] Accurate collection and display of vehicle speed play a vital role in the safe driving of the vehicle. Existing vehicle speed signal acquisition devices usually collect vehicle speed signals through vehicle speed sensors or wheel speed sensors. The vehicle speed signal acquisition method is single. When the sensor fails or the vehicle speed signal transmission line is disconnected, it cannot work normally, which seriously affects the safe driving of the car. Contents of the invention [0003] In order to solve the problem that the signal acquisition mode of the existing vehicle speed signal acquisition device is single, the invention proposes an automobile speed acquisition device. [0004] The vehicle speed acquisition device of the present invention comprises: [0005] The vehicle speed sensing module...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/50
CPCG01P3/50
Inventor 吴南南孙孝武王云朋孙志媛
Owner AEROSPACE HI TECH HLDG GROUP
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