CN103543354A - Fan clutch detection device - Google Patents
Fan clutch detection device Download PDFInfo
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- CN103543354A CN103543354A CN201310483149.5A CN201310483149A CN103543354A CN 103543354 A CN103543354 A CN 103543354A CN 201310483149 A CN201310483149 A CN 201310483149A CN 103543354 A CN103543354 A CN 103543354A
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Abstract
The invention relates to a fan clutch detection device comprising a microcontroller, a power connector, a harness thermostat switch interface, a harness clutch interface, a clutch interface, a power input circuit, a harness detection switch, a display unit, a clutch first/second gear detection switch and an AD signal sampling processing circuit. The harness thermostat switch interface is used for connecting with the thermostat switch interface of a harness, the harness clutch interface is used for connecting with the clutch interface of the harness, and the clutch interface is used for connecting with a clutch; the AD signal sampling processing circuit is connected with the clutch interface to sample signals reflecting the operating states of the clutch to be detected, and the AD signal sampling processing circuit is connected with the harness clutch interface to sample signals reflecting the operating states of the harness to be detected; the microcontroller processes signals acquired by the AD signal sampling processing circuit, acquires detection results, and controls the display unit to display the detection results. By the aid of the device, efficiency of detecting and positioning faults can be improved.
Description
Technical field
The present invention relates to vehicle testing technique, relate in particular to a kind of fan clutch pick-up unit.
Background technology
Electromagnetic fan clutch, is a kind of radiator cooler of vehicle, is arranged in the cooling system of automobile, realizes two stage speed change or the three-step gear shift of cooling fan by solenoid principle of induction, thereby reaches the object of saving fuel oil, reducing energy consumption.Electromagnetic fan clutch is installed and can be saved fuel oil, reduce discharge, extend the serviceable life of cooling system, thereby significantly reduced the use cost of vehicle.This product is mainly used on various large and medium bus, urban public traffic vehicles and heavy truck.Adopt the reason of electromagnetic fan clutch to be, fan is the consumer of engine capacity, is about 10% of engine capacity when maximum, in order to reduce fan power consumption, reduce noise and wearing and tearing, prevent engine overheat, reduce and pollute, save fuel, therefore the electromagnetic fan clutch that adopt more.
Electromagnetic fan clutch is by thermoswitch or cooling-water temperature sensor, air-temperature sensor and control module or Engine ECU (Electronic Control Unit, electronic control unit, claim again " car running computer ", " vehicle-mounted computer " etc.) automatically control and realize one grade of speed change or second gear speed change, thus the rotating speed of control cooling fan.Electromagnetic fan clutch can or unclamp coil according to the temperature automatic pick of the temperature of vehicle motor water delivering orifice or middle cold air gas outlet, makes all the time engine operation within the scope of a stationary temperature, thereby realizes object energy-conservation, protection engine.Therefore, electromagnetic fan clutch is being in place, is controlling under the accurate prerequisite of wire harness wiring, need not manual operation and intervention.Give below have 2 fast electromagnetic fan clutch control strategy as an example, comprise that thermoswitch is controlled and two kinds of modes of Engine ECU control.
Thermoswitch is controlled (only controlling water temperature)
Engine ECU is controlled (only controlling water temperature)
Because fan clutch is arranged in automobile, by automobile ECU, controlled, when detecting, when engine water temperature surpasses certain limit, just switch one, second gear, handoff procedure is subject to the impact of the series of factors such as vehicle water temp, temperature sensor, ECU, fan clutch, fan, during maintenance, be not easy to locate fast fault coverage, in whole closed loop loop, be difficult for determining the quality of electromagnetic clutch.
Because fan clutch is in closed loop loop, by automobile ECU, by water temperature, judged to start and switch, when therefore traditional fan clutch maintenance detects, need to activate the control of ECU to fan clutch by improving engine water temperature, when reason is out of order in supposition, still need to determine location fault by exchange test, have maintenance process trouble, inefficient shortcoming.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of fan clutch pick-up unit, do not need the water temp. heating of automobile to detect to corresponding temperature the quality of fan clutch or fan.
For achieving the above object, the invention provides a kind of fan clutch pick-up unit, mainly comprise single-chip microcomputer, power interface, wire harness temperature detect switch (TDS) interface, wire harness clutch coupling interface, clutch coupling interface, power supply input circuit, wire harness detector switch, display unit, clutch coupling one/second gear detector switch and AD signal sampling treatment circuit, this power interface is used for connecting power supply, this wire harness temperature detect switch (TDS) interface is for the temperature detect switch (TDS) interface of rat tail, this wire harness clutch coupling interface is for the clutch coupling interface of rat tail, and this clutch coupling interface is used for connecting clutch coupling, when this device detects clutch coupling, the internal circuit of clutch coupling to be measured accesses this device by this clutch coupling interface and forms loop, power supply passes through this power interface input power input circuit with power supply, this clutch coupling one/second gear detector switch connects this clutch coupling interface to select the internal circuit of clutch coupling to be measured to access the gear of this device, and this AD signal sampling treatment circuit connects this clutch coupling interface with the signal of sampling reflection clutch coupling duty to be measured, when this device detects wire harness, the temperature detect switch (TDS) interface of wire harness to be measured and clutch coupling interface access respectively described wire harness temperature detect switch (TDS) interface and wire harness clutch coupling interface, so that the internal circuit of wire harness to be measured accesses this device, form loop and control break-make by this wire harness detector switch, external power source is inputted by the power interface of wire harness to be measured, and input this power supply input circuit with power supply via this wire harness temperature detect switch (TDS) interface and wire harness clutch coupling interface, this clutch coupling one/second gear detector switch connects this wire harness clutch coupling interface to select the internal circuit of wire harness to be measured to access the gear of this device, this AD signal sampling treatment circuit connects this wire harness clutch coupling interface with the signal of sampling reflection wire harness duty to be measured, this single-chip microcomputer is processed the signal that this AD signal sampling treatment circuit gathers and is drawn testing result, and controls this display unit and show testing result.
Wherein, described display unit comprises for showing the testing result pilot lamp of testing result.
Wherein, described display unit also comprises for showing the wire harness pilot lamp in wire harness detected state.
Wherein, described display unit comprises the power light for display power supply state.
Wherein, described display unit comprises for showing wire harness second gear pilot lamp and the wire harness third gear pilot lamp of wire harness gear to be measured.
Wherein, described power supply input circuit comprises keyswitch and the fuse of series connection.
Wherein, when this device detects clutch coupling:
While pressing a gear switch S6 of this clutch coupling one/second gear detector switch, electric current is through switch S 6, the stitch J8_2 of this clutch coupling interface, the interface pin J11_2 of clutch coupling to be measured, clutch coupling to be measured, the interface pin J11_1 of clutch coupling to be measured, the stitch J8_1 of clutch coupling interface, diode D11 ground connection, this AD signal sampling treatment circuit connects the sampled point FB1 between stitch J8_1 and diode D11;
While pressing the second gear switch S 7 of this clutch coupling one/second gear detector switch, electric current is through switch S 7, the stitch J8_4 of this clutch coupling interface, the interface pin J11_4 of clutch coupling to be measured, clutch coupling to be measured, the interface pin J11_3 of clutch coupling to be measured, the stitch J8_3 of clutch coupling interface, diode D12 ground connection, this AD signal sampling treatment circuit connects the sampled point FB2 between stitch J8_3 and diode D12;
By detecting the voltage of sampled point FB1 and FB2, judge the quality of clutch coupling to be measured.
Wherein, between the stitch J8_2 of this clutch coupling interface and this diode D11, be in series with the sustained diode 6 reverse with this diode D11, between the stitch J8_4 of this clutch coupling interface and this diode D12, be in series with the sustained diode 5 reverse with this diode D12.
Wherein, when this device detects wire harness, external power source is inputted by the power interface J2 of wire harness to be measured, and by the stitch J3_1 of temperature detect switch (TDS) interface and the stitch J4_1 of clutch coupling interface of wire harness to be measured, J4_3 is this device power supply;
While pressing a gear switch S6 of this clutch coupling one/second gear detector switch, electric current is through the stitch S9_1 of this wire harness detector switch, the stitch J7_2 pressing after this wire harness detector switch S9 by this wire harness temperature detect switch (TDS) interface exports, by wire harness to be measured, by the stitch J13_2 of this wire harness clutch coupling interface, returned again, diode D10 by resistance R 5, one end ground connection forms loop, and this AD signal sampling treatment circuit connects the sampled point CL1 between this resistance R 5 and diode D10;
While pressing the second gear switch S 7 of this clutch coupling one/second gear detector switch, electric current is through the stitch S9_4 of this wire harness detector switch, the stitch J7_3 pressing after this wire harness detector switch S9 by this wire harness temperature detect switch (TDS) interface exports, by wire harness to be measured, by the stitch J13_4 of this wire harness clutch coupling interface, returned again, diode D8 by resistance R 7, one end ground connection forms loop, and this AD signal sampling treatment circuit connects the sampled point CL2 between this resistance R 7 and diode D8;
By detecting the voltage of sampled point CL1 and CL2, judge the quality of wire harness to be measured.
Wherein, described wire harness detector switch, clutch coupling one/second gear detector switch are mechanical switch, or are described monolithic processor controlled analog mechanical switch, or are capacitance type touch key.
Fan clutch pick-up unit of the present invention, when maintenance fan clutch, only need press respective switch, can realize simulation thermally sensitive temperature switch or the control of Engine ECU to fan clutch, and do not need the water temp. heating of automobile to detect to corresponding temperature the quality of fan clutch or fan, improve the efficiency that detects and locate fault.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention is described in detail, will make technical scheme of the present invention and other beneficial effects apparent.
In accompanying drawing,
Fig. 1 is the circuit block diagram of figure fan clutch pick-up unit of the present invention one preferred embodiment;
Fig. 2 is the power supply input circuit structural drawing of fan clutch pick-up unit one preferred embodiment of the present invention;
Fig. 3 is the circuit structure diagram of the clutch coupling test section of fan clutch pick-up unit one preferred embodiment of the present invention;
Fig. 4 is the circuit structure diagram of the wire harness test section of fan clutch pick-up unit one preferred embodiment of the present invention;
Fig. 5 is the circuit structure diagram of the existing wire harness that detects of Fig. 4.
Embodiment
Referring to Fig. 1, it is for the circuit block diagram of figure fan clutch pick-up unit of the present invention one preferred embodiment.Fan clutch pick-up unit of the present invention mainly comprises single-chip microcomputer 1, power interface 2, wire harness temperature detect switch (TDS) interface 3, wire harness clutch coupling interface 4, clutch coupling interface 5, power supply input circuit 6, wire harness detector switch 7, by testing result pilot lamp 10, wire harness pilot lamp 11, wire harness second gear pilot lamp 12, the display unit that wire harness third gear pilot lamp 13 and power light 14 etc. form, clutch coupling one/second gear detector switch 8 and AD signal sampling treatment circuit 9, this power interface 2 is for connecting power supply, this wire harness temperature detect switch (TDS) interface 3 is for the temperature detect switch (TDS) interface of rat tail, this wire harness clutch coupling interface 4 is for the clutch coupling interface of rat tail, this clutch coupling interface 5 is for connecting clutch coupling, when this device detects clutch coupling, the internal circuit of clutch coupling to be measured forms loop by this this device of clutch coupling interface 5 accesses, power supply passes through these power interface 2 input power input circuits 6 with power supply, this clutch coupling one/second gear detector switch 8 connects this clutch coupling interface 5 to select the internal circuit of clutch coupling to be measured to access the gear of this device, and this AD signal sampling treatment circuit 9 connects this clutch coupling interface 5 with the signal of sampling reflection clutch coupling duty to be measured, when this device detects wire harness, the temperature detect switch (TDS) interface of wire harness to be measured and clutch coupling interface access respectively described wire harness temperature detect switch (TDS) interface 3 and wire harness clutch coupling interface 4, so that the internal circuit of wire harness to be measured accesses this device, form loop and control break-make by this wire harness detector switch 7, external power source is inputted by the power interface of wire harness to be measured, and input these power supply input circuits 6 with power supply via this wire harness temperature detect switch (TDS) interface 3 and wire harness clutch coupling interface 4, this clutch coupling one/second gear detector switch 8 connects this wire harness clutch coupling interface 4 to select the internal circuit of wire harness to be measured to access the gear of this device, this AD signal sampling treatment circuit 9 connects this wire harness clutch coupling interface 4 with the signal of sampling reflection wire harness duty to be measured, the signal that this single-chip microcomputer 1 this AD signal sampling treatment circuit 9 of processing gathers draws testing result, and controls this display unit demonstration testing result.AD signal sampling treatment circuit 9 can be the AD pin of single-chip microcomputer 1.Testing result pilot lamp 10 is for showing testing result, wire harness pilot lamp 11 is for showing in wire harness detected state, power light 14 is for display power supply state, wire harness second gear pilot lamp 12 and wire harness third gear pilot lamp 13 are for showing wire harness gear to be measured, and these pilot lamp can adopt light emitting diode.It will be appreciated by those skilled in the art that, these pilot lamp can be selected to be controlled by single-chip microcomputer (MCU) 1, also can select connect with switch and directly controlled by the break-make of switch, in addition, display unit, except being pilot lamp, can also adopt the display screen that can show complex information.
Clutch coupling to be measured and attached wire harness thereof are prior art, and the internal circuit of clutch coupling and wire harness and the various interface having thereof are well known to the skilled person.Consider and be arranged in automobile because of existing fan clutch, by automobile ECU, controlled, when detecting, when engine water temperature surpasses certain limit, just switch one, second gear, handoff procedure is subject to the impact of the series of factors such as vehicle water temp, temperature sensor, ECU, fan clutch, fan, during maintenance, be not easy to locate fast fault coverage, in whole closed loop loop, be difficult for determining the quality of electromagnetic clutch.Utilize fan clutch pick-up unit of the present invention, when maintenance, cut off above-mentioned loop, direct modeling automobile ECU is controlled electromagnetic clutch, can locate fast and accurately the fault coverage of electromagnetic clutch, improves maintenance efficiency.By device of the present invention, can simulate rapidly the process that water temperature exceeds standard, locate fast fault coverage, improve maintenance efficiency.
Referring to Fig. 2 to Fig. 5, below in conjunction with the circuit diagram of fan clutch pick-up unit one preferred embodiment of the present invention, further explain the present invention.Wherein, Fig. 2 is the power supply input circuit structural drawing of fan clutch pick-up unit one preferred embodiment of the present invention.Power supply is from power interface J5 or temperature control and clutch end input by wire harness to be measured, and the fuse F1 that flows through, keyswitch S8, resistance R 1, light emitting diode D4 ground connection for device power supply, can be lighted the light emitting diode D4 as power light simultaneously.Fuse F1 can fuse when power source loads overcurrent, protection power source and circuit, and keyswitch S8 is total power switch.Fig. 2, as the power supply input circuit of fan clutch pick-up unit of the present invention, embodies in Fig. 4 equally below.
Fig. 3 is the circuit structure diagram of the clutch coupling test section of fan clutch pick-up unit one preferred embodiment of the present invention.While detecting clutch coupling, the corresponding connection of clutch coupling interface J8 by the interface of clutch coupling to be measured (connector) J11 with this device, power supply accesses from power interface J5 as shown in Figure 2.In Fig. 3, clutch coupling testing circuit is described as follows:
1, when pressing total power switch S8, power connection;
While 2, pressing a gear switch S6 of clutch coupling one/second gear detector switch, electric current process switch S 6, stitch J8_2, stitch J11_2, clutch coupling to be measured, stitch J11_1, stitch J8_1, diode D11 ground connection, FB1 is one grade of clutch coupling sampled point;
While 3, pressing the second gear switch S 7 of clutch coupling one/second gear detector switch, electric current process switch S 7, stitch J8_4, stitch J11_4, clutch coupling to be measured, stitch J11_3, stitch J8_3, diode D12 ground connection, FB2 is second gear clutch coupling sampled point;
4, diode D5, D6 is the fly-wheel diode of fan clutch inverse electromotive force protection.
Detect explanation
5, clutch coupling to be measured is gone here and there the diode D11 in circuit, the voltage at D12 two ends by detection and is judged.AD pin by single-chip microcomputer is connected with sampled point FB1,2 of FB2 respectively, carries out voltage sample, judges the quality of clutch coupling by gathering this voltage of 2.
6,, when fan clutch is opened a way, diode D11, D12 both end voltage are zero;
7,, when fan clutch short circuit, diode D11, D12 both end voltage are larger than preset value;
8,, when fan clutch is normal, diode D11, D12 both end voltage are a fixed value; Be generally 0.7V.
9, when two line turn-to-turn faults of fan clutch, press the next key that detects as a gear switch S6, now the voltage at two diode D11, D12 two ends all can change, and two pilot lamp all can be lighted; Now can judge the situation that has short circuit between fan clutch two ends.
Fig. 4 is the circuit structure diagram of the wire harness test section of fan clutch pick-up unit one preferred embodiment of the present invention, and Fig. 5 is the circuit structure diagram of the existing wire harness that detects of Fig. 4.It should be noted that Fig. 3 is the latter half of the circuit diagram of Fig. 4, Fig. 3 and Fig. 4 combination can obtain the complete circuit diagram of this preferred embodiment.While carrying out wire harness test, the temperature detect switch (TDS) interface J3 of wire harness to be measured and clutch coupling interface J4 are connected respectively wire harness temperature detect switch (TDS) interface J7 and the wire harness clutch coupling interface J13 of this device, and the circuit of wire harness test section is described as follows:
1, wire harness test need to be used the power interface J2 power supply of wire harness to be measured, external power source is inputted by the power interface J2 of wire harness to be measured, by the J3_1 stitch of temperature detect switch (TDS) interface J3 and the J4_1 of clutch coupling interface J4 of wire harness to be measured, J4_3 stitch is pick-up unit power supply of the present invention;
2, after external power source access, by fuse F1 and master switch S8, control pick-up unit switch;
3, press after a gear switch S6 or S7 of this clutch coupling one/second gear detector switch, " just " of power supply accesses respectively wire harness detector switch S9_1 and S9_4, the J7_2 and the J7_3 that press after wire harness detector switch S9 respectively by pick-up unit export, by wire harness to be measured, by J13_2 and J13_4, returned again, by resistance R 5, R7, diode D8, D10 form loop;
Wire harness test specification
4, clutch coupling wire harness to be measured judges by the diode D8 in circuit described in detection Fig. 4, the voltage at D10 two ends, by the AD pin of single-chip microcomputer, be connected with 2 of CL1, CL2 in Fig. 4, carry out voltage sample, by gathering this voltage of 2, judge the quality of clutch coupling wire harness;
5,, when wire harness power supply is opened circuit, pick-up unit is not powered to input and is not started;
6, when wire harness second gear or third gear passage open circuit, diode D8 or D10 two ends can't detect voltage;
7, when wire harness short circuit, when not pressing wire harness detector switch S9, diode D8 or D10 two ends just have voltage, can judge abnormal.
Fan clutch pick-up unit of the present invention utilizes fan clutch for inductive load, presents resistive feature in DC circuit, and the mode that gathers diode ends A D voltage judges that whether coil is normal; Utilize mechanical switch to replace temperature detect switch (TDS), the inconvenient maintenance of avoiding heating temperature control switch to bring; Utilize the control of this unit simulation ECU to fan clutch, improve maintenance efficiency, locate fast trouble spot.
Be appreciated that, although take mechanical switch in embodiments of the invention as example, but in fact wire harness detector switch, clutch coupling one/second gear detector switch etc. can be by monolithic processor controlled analog mechanical switch, realize the function automatically detecting, or be capacitance type touch key, by a button, activate single-chip microprocessor MCU and automatically test.In addition, although represented the male and female of each interface (connector) in accompanying drawing of the present invention, it will be appreciated by those skilled in the art that in fact the male and female of corresponding interface can be set according to the actual requirements.
In sum, fan clutch pick-up unit of the present invention, when maintenance fan clutch, only need press respective switch, can realize simulation thermally sensitive temperature switch or the control of Engine ECU to fan clutch, and do not need the water temp. heating of automobile to detect to corresponding temperature the quality of fan clutch or fan, improve the efficiency that detects and locate fault.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of the accompanying claim of the present invention.
Claims (7)
1. a fan clutch pick-up unit, it is characterized in that, comprise single-chip microcomputer, power interface, wire harness temperature detect switch (TDS) interface, wire harness clutch coupling interface, clutch coupling interface, power supply input circuit, wire harness detector switch, display unit, clutch coupling one/second gear detector switch and AD signal sampling treatment circuit, this power interface is used for connecting power supply, this wire harness temperature detect switch (TDS) interface is for the temperature detect switch (TDS) interface of rat tail, this wire harness clutch coupling interface is for the clutch coupling interface of rat tail, and this clutch coupling interface is used for connecting clutch coupling;
When this device detects clutch coupling, the internal circuit of clutch coupling to be measured accesses this device by this clutch coupling interface and forms loop, power supply passes through this power interface input power input circuit with power supply, this clutch coupling one/second gear detector switch connects this clutch coupling interface to select the internal circuit of clutch coupling to be measured to access the gear of this device, and this AD signal sampling treatment circuit connects this clutch coupling interface with the signal of sampling reflection clutch coupling duty to be measured;
When this device detects wire harness, the temperature detect switch (TDS) interface of wire harness to be measured and clutch coupling interface access respectively described wire harness temperature detect switch (TDS) interface and wire harness clutch coupling interface, so that the internal circuit of wire harness to be measured accesses this device, form loop and control break-make by this wire harness detector switch, external power source is inputted by the power interface of wire harness to be measured, and input this power supply input circuit with power supply via this wire harness temperature detect switch (TDS) interface and wire harness clutch coupling interface, this clutch coupling one/second gear detector switch connects this wire harness clutch coupling interface to select the internal circuit of wire harness to be measured to access the gear of this device, this AD signal sampling treatment circuit connects this wire harness clutch coupling interface with the signal of sampling reflection wire harness duty to be measured,
This single-chip microcomputer is processed the signal that this AD signal sampling treatment circuit gathers and is drawn testing result, and controls this display unit and show testing result.
2. fan clutch pick-up unit as claimed in claim 1, is characterized in that, described display unit comprises for showing the testing result pilot lamp of testing result.
3. fan clutch pick-up unit as claimed in claim 1, is characterized in that, described display unit also comprises for showing the wire harness pilot lamp in wire harness detected state.
4. fan clutch pick-up unit as claimed in claim 1, is characterized in that, described display unit comprises the power light for display power supply state.
5. fan clutch pick-up unit as claimed in claim 1, is characterized in that, described display unit comprises for showing wire harness second gear pilot lamp and the wire harness third gear pilot lamp of wire harness gear to be measured.
6. fan clutch pick-up unit as claimed in claim 1, is characterized in that, described power supply input circuit comprises keyswitch and the fuse of series connection.
7. fan clutch pick-up unit as claimed in claim 1, is characterized in that, described wire harness detector switch, clutch coupling one/second gear detector switch are mechanical switch, or is described monolithic processor controlled analog mechanical switch, or is capacitance type touch key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483149.5A CN103543354B (en) | 2013-10-15 | Fan clutch detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483149.5A CN103543354B (en) | 2013-10-15 | Fan clutch detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103543354A true CN103543354A (en) | 2014-01-29 |
| CN103543354B CN103543354B (en) | 2016-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678227A (en) * | 2015-03-17 | 2015-06-03 | 南方英特空调有限公司 | Comprehensive detector for automobile electronic fan |
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| DE10326785A1 (en) * | 2003-06-13 | 2004-12-30 | Robert Bosch Gmbh | Fan motor seizure recognition procedure checks for excessive difference between measured and individual motor stored current voltage characteristics |
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| CN201853418U (en) * | 2010-11-30 | 2011-06-01 | 黑龙江农业工程职业学院 | Operation and experiment table for whole-automobile electronic simulation control system |
| CN102411318A (en) * | 2011-11-17 | 2012-04-11 | 东风朝阳柴油机有限责任公司 | Automatic test control device for electromagnetic fan clutch for vehicle |
| CN202631232U (en) * | 2012-04-13 | 2012-12-26 | 武汉赛弗思汽车部件有限公司 | Electric control silicone oil fan online detection apparatus |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10326785A1 (en) * | 2003-06-13 | 2004-12-30 | Robert Bosch Gmbh | Fan motor seizure recognition procedure checks for excessive difference between measured and individual motor stored current voltage characteristics |
| CN101963641A (en) * | 2009-07-24 | 2011-02-02 | 上海长顺电梯电缆有限公司 | Conductor bundle detection system |
| CN201853418U (en) * | 2010-11-30 | 2011-06-01 | 黑龙江农业工程职业学院 | Operation and experiment table for whole-automobile electronic simulation control system |
| CN102411318A (en) * | 2011-11-17 | 2012-04-11 | 东风朝阳柴油机有限责任公司 | Automatic test control device for electromagnetic fan clutch for vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678227A (en) * | 2015-03-17 | 2015-06-03 | 南方英特空调有限公司 | Comprehensive detector for automobile electronic fan |
| CN104678227B (en) * | 2015-03-17 | 2017-07-11 | 南方英特空调有限公司 | Automotive electronics fans comprehensive detector |
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