CN201672994U - Automobile coolant temperature sensor testing device - Google Patents

Automobile coolant temperature sensor testing device Download PDF

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Publication number
CN201672994U
CN201672994U CN2010202093718U CN201020209371U CN201672994U CN 201672994 U CN201672994 U CN 201672994U CN 2010202093718 U CN2010202093718 U CN 2010202093718U CN 201020209371 U CN201020209371 U CN 201020209371U CN 201672994 U CN201672994 U CN 201672994U
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CN
China
Prior art keywords
sensor
temperature sensor
cooling
temperature
water temperature
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Expired - Fee Related
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CN2010202093718U
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Chinese (zh)
Inventor
屈敏
朱金龙
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Nanjing Institute of Technology
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Nanjing Institute of Technology
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Abstract

The utility model discloses an automobile coolant temperature sensor testing device, which relates to the field of the coolant temperature sensor testing device. The automobile coolant temperature sensor testing device mainly comprises a water tank (1), an electrical heating rod (2), a standard temperature sensor (3), a tested coolant temperature sensor (4), a singlechip temperature signal acquisition display (5) and a sensor placed frame (6). The electrical heating rod (2) is arranged in the water tank (1). The upper part of the water tank (1) is provided with the sensor placed frame (6). The standard temperature sensor (3) and the tested coolant temperature sensor (4) are arranged on the sensor placed frame (6) and connected with the singlechip temperature signal acquisition display (5). With high degree of automation, the utility model is more advanced, safer and more efficient than the traditional coolant sensor piece testing device and method.

Description

Automobile cooling temperature sensor proving installation
Technical field
The utility model relates to the cooling-water temperature transmitter proving installation, and what be specifically related to is a kind of automobile cooling temperature sensor proving installation.
Background technology
In automotive electric injection engine system, automatic air-conditioning system, temperature is to need one of important parameter of measuring and controlling.The measurement of the measurement of engine thermal state, gas and fluid temperature all needs temperature sensor to finish.Thermistor temperature sensor is highly sensitive, temperature coefficient is big, response is fast, is easy to realize telemeasurement, thereby is used widely at automobile.
Cooling-water temperature transmitter is installed on the water jacket of engine cylinder-body or cylinder cap, contacts with liquid coolant, is used for the cooling water temperature of detection of engine.The inside of cooling-water temperature transmitter is the semiconductor thermistor (NTC) of a negative temperature coefficient, and temperature characterisitic is better linear, and with the rising of water temperature, resistance value descends, and just can reflect measured variation by the resistance change of measuring it.ECU (Electrical Control Unit) provides the reference power source of 5V to it, sensor is converted to change in voltage with the respective change of resistance and temperature, ECU (Electrical Control Unit) records the temperature of engine coolant according to the variation of this voltage, the signal that produces with other sensors is used for determining fuel injection pulse width, time of ignition etc. together.
According to the document record, (Chen Bingchen, Wang Yin chief editor. automobile sensor uses and maintenance (M). Beijing: Golden Shield publishing house, 2002.9,7-11; Volumes such as Song Fuchang. automobile sensor identification and detection diagram (M). Beijing: Electronic Industry Press, 2003.6,11-16; Qi Zhipeng. the principle of automobile sensor and actuator and maintenance (M). Beijing: People's Telecon Publishing House.2002.11 2-5), the test of cooling-water temperature transmitter generally uses the multimeter method directly to measure the sensor electrical resistance, and with itself and standard value relatively, as does not meet with setting and differ greatly, and then should change cooling-water temperature transmitter.Concrete operation method is: 1. with regard to car resistance, voltage tester: ignition switch is placed the OFF position, and dismounting cooling-water temperature transmitter conductor jointer is with the resistance value between digital high impedance multimeter Ω shelves testing sensor two-terminal.The height of its resistance value and temperature is inversely proportional to, when cold machine greater than 2k Ω, when hot machine less than 1k Ω.When ignition switch places " ON " position, from cooling-water temperature sensor conductor jointer terminal or from testing sensor output voltage signal between ECU bonder terminal and the ground, actual measurement voltage during cold machine is greater than 2V, after the startup, the voltage between terminals value should be with the coolant water temperature variation that is inversely proportional to, during hot machine less than 1V.2. single-piece resistance test: pull up the cooling-water temperature transmitter conductor jointer, pull down sensor from engine then; This sensor is placed water in the beaker,, read water temperature value and measure in the resistance value between cooling-water temperature transmitter two connection terminals under the different water temperature conditions with multimeter Ω shelves simultaneously with glass-stem thermometer with the water in the spirit lamp Heating Cup.
With regard to the test of car resistance and output signal voltage, the hard fault that can conveniently detect cooling-water temperature transmitter is the quality of sensor, but it can not go out the performance of temperature sensor and concrete parameter by DCO.Also need adopt the single-piece method of testing in order further to study its performance, but traditional single-piece method of testing is more loaded down with trivial details, is not easy to operation; Glass workpieces such as the beaker of those experiment usefulness, spirit lamp, glass-stem thermometer are fragile, and safety coefficient is low; The test operation time is long, and automaticity is low.
The utility model content
The technical problems to be solved in the utility model provides a kind of automobile cooling temperature sensor proving installation, can make things convenient for, test safely, efficiently liquid coolant sensor single-piece.
The technical scheme that its technical matters that solves the utility model adopts is:
Automobile cooling temperature sensor proving installation is mainly laid to prop up by tank, electrically heated rod, standard temperature sensor, tested cooling-water temperature transmitter, single-chip microcomputer temperature signal collection display and sensor and is configured to, described electrically heated rod is arranged in the tank, the top of tank is provided with sensor and lays support, sensor is laid and is placed standard temperature sensor and tested cooling-water temperature transmitter on the support, is connected with single-chip microcomputer temperature signal collection display.
Tank is a canister, is equivalent to the beaker in traditional single-piece method of testing, is used for storage of water; By the heating of the water in the electrically heated rod feed trough, be equivalent to the spirit lamp heating in traditional single-piece testing scheme; Sensor is laid support and is used for standard of laying and tested cooling-water temperature transmitter; The standard temperature sensor provides the standard temperature parameter for single-chip microcomputer temperature signal collection display, is equivalent to the glass-stem thermometer in traditional single-piece testing scheme; Single-chip microcomputer temperature signal collection display is gathered and the real-time water temperature of mutual display standard temperature sensor measurement, the real-time resistance value of tested cooling-water temperature transmitter.
Described sensor is laid support and is provided with the cooling-water temperature transmitter fixed orifice, and standard temperature sensor and tested cooling-water temperature transmitter are fixed on sensor by fixed orifice and lay on the support.
Tank and electrically heated rod all can adopt metal material.
The beneficial effects of the utility model: automobile cooling temperature sensor proving installation automaticity height of the present utility model, the real-time resistance value of the real-time water temperature in the tank, tested cooling-water temperature transmitter can directly be calculated the back by single-chip microcomputer temperature signal collection display and show, tank, the electrically heated rod of device are that metal material is comparatively firm, than traditional liquid coolant sensor single-piece test component and method advanced person, safety, efficient.
Description of drawings
Fig. 1 is traditional automobile cooling temperature sensor single-piece method of testing and structure composition diagram
Wherein, 1-beaker; The 2-spirit lamp; The 3-glass-stem thermometer; The tested cooling-water temperature transmitter of 4-; The 5-multimeter.
Fig. 2 is method of testing of the present utility model and structure composition diagram
Wherein, 1-tank; The 2-electrically heated rod; 3-standard temperature sensor; The tested cooling-water temperature transmitter of 4-; 5-single-chip microcomputer temperature signal collection display; The 6-sensor is laid support.
Embodiment
Embodiment 1
As shown in Figure 2, a kind of automobile cooling temperature sensor proving installation, laying support 6 by tank 1, electrically heated rod 2, standard temperature sensor 3, tested cooling-water temperature transmitter 4, single-chip microcomputer temperature signal collection display 5 and sensor constitutes, described electrically heated rod 2 is arranged in the tank 1, the top of tank 1 is provided with sensor and lays support 6, sensor is laid and is placed standard temperature sensor 3 and tested cooling-water temperature transmitter 4 on the support 6, is connected with single-chip microcomputer temperature signal collection display 5.
In tank 1, load onto earlier the water of suitable liquid level, tested cooling-water temperature transmitter 4 is selected to be placed in sensor to be laid on the support 6, connect the lead between tested cooling-water temperature transmitter 4 and the single-chip microcomputer temperature signal collection display 5, the real-time water temperature of measuring when showing room temperature for 5 power supplies of single-chip microcomputer temperature signal collection display, the resistance value of tested cooling-water temperature transmitter 4, add water in the hot water storgae 1 for again electrically heated rod 2 energisings, along with temperature, the resistance value of each check point on the rising fast recording single-chip microcomputer temperature signal collection display 5 of water temperature.After the end of test (EOT) test record value and standard value are compared, to determine the performance condition of tested cooling-water temperature transmitter.
Single-chip microcomputer temperature signal collection display 5 among Fig. 2 mainly is made up of A/D converter, MCU, charactron etc., is used for gathering the signal of conversion temperature sensor and being shown, can select different chips, elements combination to make easily and realize.
Embodiment 2
As shown in Figure 2, present embodiment is identical with embodiment 1 structure, during test that different is such as room temperature higher, the initial temperature of water is higher in the tank, can be before adding water in the hot water storgae 1 for electrically heated rod 2 energisings, water in elder generation's feed trough 1 adds an amount of ice cube cooling, realizes the test of 0-100 ℃ of scope.
Embodiment 3
As shown in Figure 2, present embodiment is identical with embodiment 1 basic structure, and different is that tested cooling-water temperature transmitter 4 is fixing by laying at sensor in the hole suitable on the support 6.

Claims (2)

1. automobile cooling temperature sensor proving installation, it is characterized in that: described automobile cooling temperature sensor proving installation is mainly by tank (1), electrically heated rod (2), standard temperature sensor (3), tested cooling-water temperature transmitter (4), single-chip microcomputer temperature signal collection display (5) and sensor are laid support (6) and are constituted, described electrically heated rod (2) is arranged in the tank (1), the top of tank (1) is provided with sensor and lays support (6), sensor is laid support (6) and is gone up placement standard temperature sensor (3) and tested cooling-water temperature transmitter (4), is connected with single-chip microcomputer temperature signal collection display (5).
2. automobile cooling temperature sensor proving installation according to claim 1, it is characterized in that: described sensor is laid support (6) and is provided with the cooling-water temperature transmitter fixed orifice, and standard temperature sensor (3) and tested cooling-water temperature transmitter (4) are fixed on sensor by fixed orifice and lay on the support (6).
CN2010202093718U 2010-05-31 2010-05-31 Automobile coolant temperature sensor testing device Expired - Fee Related CN201672994U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202093718U CN201672994U (en) 2010-05-31 2010-05-31 Automobile coolant temperature sensor testing device

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Application Number Priority Date Filing Date Title
CN2010202093718U CN201672994U (en) 2010-05-31 2010-05-31 Automobile coolant temperature sensor testing device

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CN201672994U true CN201672994U (en) 2010-12-15

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104111129A (en) * 2014-07-21 2014-10-22 奇瑞汽车股份有限公司 Water temperature sensor detection bench and a water temperature sensor detection method based on same
CN104976725A (en) * 2015-07-31 2015-10-14 苏州蓝王机床工具科技有限公司 Air conditioner with temperature calibration function
CN105157879A (en) * 2015-08-19 2015-12-16 首凯汽车零部件(江苏)有限公司 Exhaust gas temperature emission sensor performance test device
CN105823514A (en) * 2016-05-05 2016-08-03 桂林电子科技大学 Cooling liquid detection device
CN107101748A (en) * 2017-06-07 2017-08-29 安徽海盛智能测控科技有限公司 A kind of device for being used to detect cooling-water temperature transmitter
CN107101747A (en) * 2017-01-22 2017-08-29 北京交通发展研究院 A kind of standard thermometer and its application method
CN113188685A (en) * 2021-04-22 2021-07-30 安徽江淮汽车集团股份有限公司 System and method for correcting water temperature meter of vehicle

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104111129A (en) * 2014-07-21 2014-10-22 奇瑞汽车股份有限公司 Water temperature sensor detection bench and a water temperature sensor detection method based on same
CN104111129B (en) * 2014-07-21 2016-08-24 奇瑞汽车股份有限公司 Cooling-water temperature sensor detection method
CN104976725A (en) * 2015-07-31 2015-10-14 苏州蓝王机床工具科技有限公司 Air conditioner with temperature calibration function
CN104976725B (en) * 2015-07-31 2017-11-28 温州嘉钮知识产权代理服务有限公司 The air-conditioning that a kind of temperature can demarcate
CN105157879A (en) * 2015-08-19 2015-12-16 首凯汽车零部件(江苏)有限公司 Exhaust gas temperature emission sensor performance test device
CN105823514A (en) * 2016-05-05 2016-08-03 桂林电子科技大学 Cooling liquid detection device
CN105823514B (en) * 2016-05-05 2018-04-20 桂林电子科技大学 A kind of coolant detection device
CN107101747A (en) * 2017-01-22 2017-08-29 北京交通发展研究院 A kind of standard thermometer and its application method
CN107101748A (en) * 2017-06-07 2017-08-29 安徽海盛智能测控科技有限公司 A kind of device for being used to detect cooling-water temperature transmitter
CN113188685A (en) * 2021-04-22 2021-07-30 安徽江淮汽车集团股份有限公司 System and method for correcting water temperature meter of vehicle

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101215

Termination date: 20110531