CN202693329U - Cooling fan wind speed control device for chassis dynamometer - Google Patents
Cooling fan wind speed control device for chassis dynamometer Download PDFInfo
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- CN202693329U CN202693329U CN 201220294801 CN201220294801U CN202693329U CN 202693329 U CN202693329 U CN 202693329U CN 201220294801 CN201220294801 CN 201220294801 CN 201220294801 U CN201220294801 U CN 201220294801U CN 202693329 U CN202693329 U CN 202693329U
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- speed
- cooling blower
- control unit
- central control
- wind speed
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Abstract
The utility model discloses a cooling fan wind speed control device for a chassis dynamometer. The cooling fan wind speed control device comprises a vehicle speed sensor, a central control unit and a cooling fan. The central control unit is connected with the vehicle speed sensor and the cooling fan; the control device is also provided with a wind speed sensor; the cooling fan is connected with the wind speed sensor; and the wind speed sensor is connected with the central control unit. By the wind speed sensor which is additionally arranged in the chassis dynamometer, the wind speed of the cooling fan is equal to the vehicle speed of a vehicle, so that the aim of simulating the adverse wind in the running process of the vehicle is fulfilled. Moreover, the device has a simple structure and is convenient to operate.
Description
Technical field
The utility model relates to the car performance test system field, refers in particular to a kind of chassis dynamometer cooling blower air speed control device.
Background technology
Chassis dynamometer is that the method by the simulated roadway driving cycle of getting on the car at indoor stand detects the various performances of automobile, but also can measure multi-state discharge index and oil consumption etc.When using chassis dynamometer to test, need simulating vehicle head-on wind in the process of moving, blow to engine and make it cooling so cooling blower is used for substituting head-on wind.The rotating speed of existing chassis dynamometer cooling blower is to set with linear function according to the speed of a motor vehicle, with physical presence certain error is arranged, and needs to eliminate this error.China Patent Publication No. CN201680975U, open day on Dec 22nd, 2010, name is called in " a kind of cooling system for automobile chassis dynamometer " and discloses a kind of cooling system for automobile chassis dynamometer, comprises cooling blower, kuppe, cooling duct, adjustable air outlet, base and sensor; Kuppe partly links to each other with cooling duct, is used for the cooling to the current vortex device for power absorption.This system has improved cooling effect, and turbine does not need to adopt reinforced fan, has effectively reduced fan and has rotated the loss power that causes.But it is inconsistent that this system does not still solve air-out speed and the speed of a motor vehicle of cooling blower, causes simulating the problem of head-on wind fully.
The utility model content
The purpose of this utility model is the inconsistent defective of the speed of a motor vehicle that overcomes wind speed and the running car of the cooling blower of chassis dynamometer in the prior art, and a kind of wind speed chassis dynamometer cooling blower air speed control device consistent with the speed of a motor vehicle of actual running car of cooling blower of chassis dynamometer is provided.
The purpose of this utility model is to be achieved by following technical proposals:
A kind of chassis dynamometer cooling blower air speed control device, comprise vehicle speed sensor, central control unit and cooling blower, central control unit connects vehicle speed sensor and cooling blower, control device also is provided with air velocity transducer, cooling blower connects air velocity transducer, and air velocity transducer connects central control unit.Control device is contained in the chassis dynamometer, and when the automobile running condition of simulation was vehicle stationary when chassis dynamometer was done experiment, wind speed was zero, and therefore in vehicle traveling process, the wind speed size of head-on wind equals the size of automobile driving speed.Air velocity transducer detects the wind speed of cooling blower, and wind speed fed back to central control unit, central control unit compares the speed of a motor vehicle of wind speed and vehicle speed sensor feedback, if wind speed improves its rotating speed than the little cooling blower of then controlling of the speed of a motor vehicle, if wind speed reduces its rotating speed than the large cooling blower of then controlling of the speed of a motor vehicle, until the speed of a motor vehicle that the wind speed that air velocity transducer gathers size and vehicle speed sensor gather is equal, reached the purpose of wind speed control.
As a kind of preferred version, cooling blower also is connected with for the speed probe of measuring the cooling blower rotating speed, and speed probe connects central control unit, and central control unit is connected with storage unit.When the wind speed of cooling blower equates with the speed of a motor vehicle, speed probe is collected the rotary speed data of cooling blower, feed back to central control unit, central control unit is sent to storage unit with these data and vehicle speed data, when testing next time, if when vehicle speed data was consistent with the vehicle speed data of record, the rotary speed data of cooling blower directly was sent to cooling blower by central control unit, directly reached the wind speed effect consistent with the speed of a motor vehicle.
As a kind of preferred version, central control unit also is connected with alarm unit.When the vehicle speed data of collecting when central control module and air speed data all the time can not be consistent, alarm unit was reported to the police, and prompting operator device is unusual.
As a kind of preferred version, cooling blower is the Centrifugal cooling fan machine.The Centrifugal cooling fan machine is realized the fine adjustment of rotating speed, to guarantee the accuracy of data in the test.
The beneficial effects of the utility model are, by being installed at the air velocity transducer in the chassis dynamometer, the wind speed of cooling blower are equated with the speed of a motor vehicle of automobile, have reached the purpose of head-on wind in the simulated automotive driving process.And this apparatus structure is simple, and is easy to operate.
Description of drawings
Fig. 1 is a kind of circuit catenation principle figure of the present utility model.
Wherein: 1, central control unit, 2, alarm unit, 3, vehicle speed sensor, 4, air velocity transducer, 5, cooling blower, 6, speed probe, 7, storage unit.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Embodiment: a kind of chassis dynamometer cooling blower of the utility model air speed control device, its circuit catenation principle figure comprises central control unit 1, vehicle speed sensor 3, air velocity transducer 4, cooling blower 5, speed probe 6, storage unit 7 and alarm unit 2 as shown in Figure 1.Wherein, vehicle speed sensor 3 connects central control unit 1, and central control unit 1 connects cooling blower 5, and cooling blower 5 connects air velocity transducer 4, and air velocity transducer 4 connects central control unit 1.Cooling blower 5 also connects speed probe 6, and speed probe 6 connects central control unit 1, and central control unit 1 connects storage unit 7.Central control unit 1 also connects alarm unit 2.Cooling blower 5 is the Centrifugal cooling fan machine.Air velocity transducer 4 detects the wind speed of cooling blower 5, and wind speed fed back to central control unit 1, central control unit 1 compares the speed of a motor vehicle of wind speed and vehicle speed sensor 3 feedbacks, if wind speed improves its rotating speed than the little cooling blower 5 of then controlling of the speed of a motor vehicle, if wind speed reduces its rotating speed than the large cooling blower 5 of then controlling of the speed of a motor vehicle, until the speed of a motor vehicle that the wind speed size that air velocity transducer 4 gathers and vehicle speed sensor 3 gather is equal, reached the purpose of wind speed control.When the wind speed of cooling blower 5 equates with the speed of a motor vehicle, speed probe 6 is collected the rotary speed data of cooling blower 5, feed back to central control unit 1, central control unit 1 is sent to storage unit 7 with these data and vehicle speed data, when testing next time, if when vehicle speed data was consistent with the vehicle speed data of record, the rotary speed data of cooling blower 5 directly was sent to cooling blower 5 by central control unit 1, directly reached the wind speed effect consistent with the speed of a motor vehicle.In addition, whole air speed control device also is provided with warning function, and when the central control module 1 detection speed of a motor vehicle can't reach consistent all the time with wind speed, alarm unit 2 gave the alarm and reminds operating personnel's system failure.
Claims (4)
1. chassis dynamometer cooling blower air speed control device, comprise vehicle speed sensor (3), central control unit (1) and cooling blower (5), central control unit (1) connects vehicle speed sensor (3) and cooling blower (5), it is characterized in that, control device also is provided with air velocity transducer (4), cooling blower (5) connects air velocity transducer (4), and air velocity transducer (4) connects central control unit (1).
2. a kind of chassis dynamometer cooling blower air speed control device according to claim 1, it is characterized in that, cooling blower (5) also is connected with for the speed probe (6) of measuring cooling blower (5) rotating speed, speed probe (6) connects central control unit (1), and central control unit (1) is connected with storage unit (7).
3. a kind of chassis dynamometer cooling blower air speed control device according to claim 1 and 2 is characterized in that described central control unit (1) also is connected with alarm unit (2).
4. a kind of chassis dynamometer cooling blower air speed control device according to claim 1 is characterized in that described cooling blower (5) is the Centrifugal cooling fan machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294801 CN202693329U (en) | 2012-06-19 | 2012-06-19 | Cooling fan wind speed control device for chassis dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220294801 CN202693329U (en) | 2012-06-19 | 2012-06-19 | Cooling fan wind speed control device for chassis dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202693329U true CN202693329U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220294801 Expired - Fee Related CN202693329U (en) | 2012-06-19 | 2012-06-19 | Cooling fan wind speed control device for chassis dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202693329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821752A (en) * | 2014-03-18 | 2014-05-28 | 中国汽车技术研究中心 | Control system and method for vehicle laboratory test wheel cooling fan |
| CN109458252A (en) * | 2018-11-02 | 2019-03-12 | 潍柴动力股份有限公司 | A kind of control method of engine-cooling system, control device and engine |
-
2012
- 2012-06-19 CN CN 201220294801 patent/CN202693329U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821752A (en) * | 2014-03-18 | 2014-05-28 | 中国汽车技术研究中心 | Control system and method for vehicle laboratory test wheel cooling fan |
| CN103821752B (en) * | 2014-03-18 | 2016-04-06 | 中国汽车技术研究中心 | Control system and control method for cooling fan of wheel in vehicle indoor test |
| CN109458252A (en) * | 2018-11-02 | 2019-03-12 | 潍柴动力股份有限公司 | A kind of control method of engine-cooling system, control device and engine |
| CN109458252B (en) * | 2018-11-02 | 2020-06-26 | 潍柴动力股份有限公司 | Control method and control device of engine cooling system and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |