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Combination meter for cars

A combination instrument and car technology, applied in instruments, vehicle parts, static indicators, etc., can solve the problems that the cross coil is easily interfered by external signals, it is difficult to find cost performance, and the cost of stepping motors is high, so as to achieve guaranteed performance, complete functions, low cost effect

Inactive Publication Date: 2010-05-12
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, each meter head in most combination instruments is realized by using a cross coil or a stepping motor to drive the pointer. The cross coil is easily interfered by external signals, the display accuracy is poor, the performance is unreliable, it takes up space, and the dial area is increased. In turn, it affects the field of vision, and the cost of stepping motors is relatively high, so it is difficult to find a cost-effective implementation

Method used

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  • Combination meter for cars
  • Combination meter for cars
  • Combination meter for cars

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] figure 1 It is a structural schematic diagram of the combination instrument of the present invention. The combination instrument of the present invention includes 1 speedometer, 5 fuel gauges, 7 water temperature gauges, 13 tachometers and 12 signal indicator lights, such as left and right turn signals, high beams, battery charging indicators, Seat belt not fastened indicator light, parking brake, oil pressure, airbag failure indicator light, rear fog light, engine failure indicator light, ABS, EBD, EPS, etc. Among them, the dial of the speedometer has a blue gradient halo printed in the scale area, and the number 3 and scale 4 are printed in white light. The realization of the speedometer is that the stepping motor drives the pointer type. Controlled, the single-chip microcomputer outputs digital signals to drive the stepper motor, and the control ac...

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Abstract

The invention relates to an automotive combination meter, which mainly comprises a speedometer, a revolution meter, a fuel meter, a water temperature meter and a plurality of signal indicator lamps. The speedometer adopts a singlechip to control a step motor to drive a pointer to display speed. The fuel meter, the revolution meter and the water temperature meter adopt LED lamps for display, wherein both the fuel meter and the revolution meter consist of seven LED lamps which can display normal revolution or flue and give alarm. The water temperature meter adopts a double-color LED lamp for display, wherein the LED lamp emits green light when water temperature is normal and emits red light when the water temperature is high. All working states of the LED indicator lamps are controlled by singlechips and have the advantages of accurate display, stable performance and the like. The combination meter has the advantages that: the dial layout is novel; a step motor and LED indicator lamp combined display mode is adopted; the whole design is humanized; and the instrument performance requirements are met when the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and in particular relates to a combined instrument function display technology of a car, that is, the speedometer adopts an analog pointer type, and the rotational speed, fuel and water temperature meters adopt LED indication display. Background technique [0002] Most of the existing automobile instrument clusters have information display such as vehicle speed mileage, rotational speed, fuel oil, water temperature, etc. The driver can know the driving conditions of the car and the working condition of the engine through the displayed data on the instrument cluster, so as to improve driving safety. At present, each meter head in most combination instruments is realized by using a cross coil or a stepping motor to drive the pointer. The cross coil is easily interfered by external signals, the display accuracy is poor, the performance is unreliable, it takes up space, and the dial area is increas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K35/00G09F9/33G09F9/35G09G3/32G09G3/36G01D7/04
Inventor 张秀芝徐玉霞郭文洋
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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