CN101070887A - Hydraulic speed buffer control system and control method - Google Patents

Hydraulic speed buffer control system and control method Download PDF

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Publication number
CN101070887A
CN101070887A CN 200710074357 CN200710074357A CN101070887A CN 101070887 A CN101070887 A CN 101070887A CN 200710074357 CN200710074357 CN 200710074357 CN 200710074357 A CN200710074357 A CN 200710074357A CN 101070887 A CN101070887 A CN 101070887A
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China
Prior art keywords
accumulator
hydrodynamic retarder
pressure
gear
solenoid valve
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CN 200710074357
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CN100523540C (en
Inventor
凌兆蔚
黄斌
李天维
闻维维
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TEERJIA SCIENCE-TECHNOLOGY Co Ltd SHENZHEN
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TEERJIA SCIENCE-TECHNOLOGY Co Ltd SHENZHEN
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Publication of CN101070887A publication Critical patent/CN101070887A/en
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Abstract

The present invention relates to a hydraulic retarder control system and its control methods. The said hydraulic retarder connects with a heat exchanger with water inlet and outlet and accumulator with air vent, which makes up a liquid circuit; the air vent of accumulator distinctively equips with intake magnetic valve between compressed air through windpipe, and equips with air outlet magnetic valve; the pressure transducer and magnetic valve installed liquid circuit of hydraulic retarder and accumulator distinctively connect with control device by electricity, the gear switch connects with control device. The pressure value collected by the said control device compares with gear switch signal corresponding resetting value, when the differental value is bigger than fixed value, supplying electricity to the outlet magnetic valve to reduce pressure of the accumulator. When the differental value is lower than fixed one, supplying electricity to the intake magnetic valve to rise pressure of the accumulator, in order to keep the pressure in the cavity range, the hydraulic retarder can produce a stable inoment of resistance.

Description

The control system of hydrodynamic retarder and controlling method thereof
Technical field
The present invention relates to a kind of control system and controlling method thereof of hydrodynamic retarder.
Background technique
Hydrodynamic retarder is a kind of rotary damping device, and it is to utilize its rotor banding hydrodynamic body rotation and impact stator, and this moment, stator also can produce a reaction force acts on rotor by liquid, thereby hindered rotor rotation.Hydrodynamic retarder can be used on the vehicle, plays the effect of auxiliary braking, has been furnished with hydrodynamic retarder at present on the senior large vehicle of minority.Hydrodynamic retarder generally adopts the control system that oil pump, complicated control valve, complicated oil duct, controller etc. are formed at present, and manufacture difficulty is bigger, and machining accuracy is than higher, so cost is also just very high.Its control accuracy is also not accurate enough in addition, and maintenance difficulty is also bigger.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency of the prior art, a kind of technology capability is good, control accurate height, low cost of manufacture hydrodynamic retarder control system and controlling method thereof are provided.
Purpose of the present invention can reach by following measure:
The control system of this hydrodynamic retarder, comprise pressure transducer, solenoid valve, driving switch, temperature transducer and controller, its special way is: described control system by hydrodynamic retarder through oil pipe be connected in series the heat exchanger that has water intake, water outlet successively, the accumulator that has ventilating hole constitutes loop, liquid road; The ventilating hole of its accumulator is being provided with the air inlet solenoid valve, is being provided with exhaust solenoid valve between accumulator and exhaust cavity or atmosphere respectively through tracheae between accumulator and the pressurized air; The pressure transducer that is located on hydrodynamic retarder active chamber or the fluid loop is electrically connected on controller, and controller is electrically connected the solenoid valve that is located on the hydrodynamic retarder accumulator again, and the driving switch that is located at operative position is electrically connected on controller; Controller is gathered the pressure signal of pressure transducer in real time, with the input signal contrast of driving switch, carries out logic and judges, whether decision gives solenoid valve.
Purpose of the present invention can also reach by following measure:
The controlling method of this hydrodynamic retarder, this method comprises the following step:
(1) controller is gathered signal according to setpoint frequency;
(2) judge that whether gear is zero, if testing result is for being then to return step (14); If testing result, is then further judged gear for not and is counted N, changes next step over to;
(3) relatively hydrodynamic retarder active chamber pressure P and gear are counted the pressure value P of the corresponding setting of N N, i.e. P-P N>δ is if result relatively is for being then supply and exhaust solenoid valve energising, accumulator exhaust; If result relatively then changes next step (19) over to for not;
(4) relatively hydrodynamic retarder active chamber pressure P and gear are counted the pressure value P of the corresponding setting of N N, i.e. P-P N<-δ is if result relatively is for being then to feed the pneumoelectric magnet valve and switch on the accumulator air inlet; If result relatively then returns step (14) for not.
Wherein, be provided with the speed determining program between described collection signals step and the gear determining step, comprise the following steps:
(12) judge that whether rotor speed is greater than setting value V 0, if testing result is not for, it is rapid then to return previous step, if testing result is for being then to enter next step;
(13) speed light is bright, changes next step (14) over to, judges further whether gear is 0.
Wherein, described gear N=i step and pressure P>P NBe provided with oily temperature determining program between the+δ step, comprise the following steps:
(16) whether judge hydrodynamic retarder oil outlet temperature less than setting t0,, then report to the police and indicate, return step (12) if detect the result for being; If testing result then enters pressure P>PN+ δ step for not.
The present invention compared with prior art has following advantage:
1. be the resisting moment of may command hydrodynamic retarder only, and, simplify the structure greatly without liquid pump with pressurized air.
2. pressure transducer and solenoid valve are very ripe product, steady quality, and the reliability height, cost is low.
3. adopt controller to control the degree of accuracy height in real time.
4. the oil duct that this control system need not be complicated, hydrodynamic retarder body technology capability is good.
Description of drawings
Fig. 1 is a control system structural representation of the present invention.
Fig. 2 is the circuit block diagram of controller of the present invention.
Fig. 3 is the basic principle flow chart of controlling method of the present invention.
Fig. 4 is embodiment's flow chart of controlling method of the present invention.
Embodiment
The present invention is further detailed in conjunction with the accompanying drawings below:
See also shown in the accompanying drawing, in the present embodiment, pressure transducer 7 and velocity transducer 8 are housed on the sidewall of hydrodynamic retarder 1, the oil outlet of hydrodynamic retarder 1 is connected with oil pipe 10 with the filler opening of heat exchanger 3, on oil pipe 10, be provided with temperature transducer 2, the oil outlet of heat exchanger 3 is connected with oil pipe 11 with the filler opening of accumulator 4, the oil outlet of accumulator 4 is connected with oil pipe 12 with the filler opening of hydrodynamic retarder 1, the ventilating hole of accumulator 4 and solenoid valve 5, solenoid valve 6 usefulness tracheaes 13 connect, solenoid valve 5 the other ends are connected to exhaust cavity or atmosphere, solenoid valve 6 the other ends are connected to pressurized air, and heat exchanger is provided with water inlet B and water outlet C.
The gear signal K that the rate signal J that the pressure signal H that the temperature signal A that temperature transducer 2 provides, pressure transducer 7 provide, velocity transducer 8 provide, driving switch 9 provide, power supply L be access controller respectively, controller connects solenoid valve 5, solenoid valve 6, indicator equipment again respectively, with the output corresponding signal.
The electrical signal that driving switch produced can be that be interrupted or continuous, and level control or stepless control hydrodynamic retarder are promptly arranged.
Control procedure: controller is according to tach signal J, the fluid temperature signal A of hydrodynamic retarder 1 oil outlet, the pressure signal H of hydrodynamic retarder 1 work intracavity liquid of the frequency collection hydrodynamic retarder rotor of setting, and the set gear signal K of driving switch 9.When rotor speed greater than setting value V 0The time, speed light is bright, and judges further whether gear is 0, need to suppose hydrodynamic retarder work, and gear is set 2 grades, and promptly N=2 need judge that also whether the temperature of hydrodynamic retarder oil outlet is less than setting value t at this moment 0, if show then that greater than setting value fluid temperature is too high, the indication of then reporting to the police, and hydrodynamic retarder temporarily do not work, if temperature is less than design load, then controller will compare the pressure P of hydrodynamic retarder active chamber and the pressure value P of 2 grades of corresponding settings 2, if P-P 2Then give solenoid valve 5 energisings greater than δ, get rid of some air of 4 li of accumulators, the pressure of active chamber is reduced, otherwise, if P-P 2Less than-δ is then to solenoid valve 6 energisings, and the air that the increase accumulator is 4 li increases the pressure of active chamber, thereby guarantees that the interior pressure of active chamber is in P 2-δ and P 2Between+the δ, hydrodynamic retarder then produces a more stable resisting moment, is the resisting moment of 2 grades of correspondences.The signals collecting of controller and logic are judged constantly repetition, circulation, thereby make hydrodynamic retarder produce needed resisting moment.
The above only is the preferred embodiment of patent of the present invention, and all equalizations of being done according to patent claimed range of the present invention change and modify, and all should belong to the covering scope of Patent right requirement of the present invention.

Claims (4)

1, a kind of control system of hydrodynamic retarder, comprise pressure transducer, solenoid valve, driving switch, controller, it is characterized in that: described control system by hydrodynamic retarder through oil pipe be connected in series the heat exchanger that has water intake, water outlet successively, the accumulator that has ventilating hole constitutes loop, liquid road; The ventilating hole of its accumulator is being provided with the air inlet solenoid valve, is being provided with exhaust solenoid valve between accumulator and exhaust cavity or atmosphere respectively through tracheae between accumulator and the pressurized air; The pressure transducer that is located on hydrodynamic retarder active chamber or the fluid loop is electrically connected on controller, and controller is electrically connected the solenoid valve that is located on the hydrodynamic retarder accumulator again, and the driving switch that is located at operative position is electrically connected on controller; Controller is gathered the pressure signal of pressure transducer in real time, with the input signal contrast of driving switch, carries out logic and judges, whether decision gives solenoid valve.
2, a kind of controlling method of hydrodynamic retarder, this method comprises the following step:
(1) controller is gathered signal according to setpoint frequency;
(2) judge that whether gear is zero, if testing result is for being then to return step (14); If testing result, is then further judged gear for not and is counted N, changes next step over to;
(3) pressure value P of hydrodynamic retarder active chamber pressure P and the corresponding setting of gear N relatively N, i.e. P-P N>δ is if result relatively is for being then supply and exhaust solenoid valve energising, accumulator exhaust; If result relatively then changes next step (19) over to for not;
(4) pressure value P of hydrodynamic retarder active chamber pressure P and the corresponding setting of gear N relatively N, i.e. P-P N<-δ is if result relatively is for being then to feed the pneumoelectric magnet valve and switch on the accumulator air inlet; If result relatively then returns step (14) for not.
3, according to the controlling method of the described hydrodynamic retarder of claim 2, wherein, be provided with the speed determining program between described collection signals step and the gear determining step, comprise the following steps:
(12) judge that whether rotor speed is greater than setting value V 0, if testing result is not for, it is rapid then to return previous step, if testing result is for being then to enter next step;
(13) speed light is bright, changes next step (14) over to, judges further whether gear is 0.
4, according to the controlling method of the described hydrodynamic retarder of claim 2, wherein, described gear N=i step and pressure P>P NBe provided with oily temperature determining program between the+δ step, comprise the following steps:
(16) judge that whether hydrodynamic retarder oil outlet temperature is less than setting t 0, if detect the result, then report to the police and indicate for being, return step (12); If testing result then enters pressure P>P for not N+ δ step.
CNB2007100743574A 2007-05-18 2007-05-18 Hydraulic speed buffer control system and control method Active CN100523540C (en)

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Application Number Priority Date Filing Date Title
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101837738A (en) * 2010-06-13 2010-09-22 深圳市特尔佳科技股份有限公司 Hydrodynamic retarder drive controller and control method thereof
CN101839783A (en) * 2010-06-01 2010-09-22 深圳市特尔佳科技股份有限公司 System and method for testing hydrodynamic retarder
CN101949424A (en) * 2010-08-31 2011-01-19 南京常荣噪声控制环保工程有限公司 Vibration absorber capable of regulating and controlling frequency automatically
CN102947146A (en) * 2010-03-03 2013-02-27 沃依特专利有限责任公司 Hydrodynamic retarder and method for operating a hydrodynamic retarder
CN104875733A (en) * 2014-02-28 2015-09-02 林会明 Hydraulic retarder control system and control method
CN105008187A (en) * 2013-03-08 2015-10-28 卡特彼勒公司 Retarding downshift management
CN105114488A (en) * 2015-09-09 2015-12-02 中国重汽集团济南动力有限公司 Water temperature control method of AMT vehicle type hydraulic retarder and control system thereof
CN105263769A (en) * 2013-06-21 2016-01-20 宝马股份公司 Method for braking a motor vehicle
CN105697606A (en) * 2016-03-01 2016-06-22 宁波华盛联合制动科技有限公司 Shell structure for accurately testing oil pressure of hydraulic retarder
CN105691369A (en) * 2016-03-01 2016-06-22 宁波华盛联合制动科技有限公司 Control system used for accurately sensing air pressure of hydrodynamic retarder
CN106402208A (en) * 2016-11-03 2017-02-15 宁波华盛联合制动科技有限公司 Hydraulic retarder pressure rise control system
CN107194123A (en) * 2017-06-22 2017-09-22 北京理工大学 Retarder braking ability emulation mode and device
CN108443357A (en) * 2018-04-10 2018-08-24 深圳市特尔佳信息技术有限公司 The control method of Retarder and engine exhaust Associated brake
CN108639036A (en) * 2018-04-10 2018-10-12 深圳市特尔佳信息技术有限公司 Retarder braking method and brake control method
CN112428946A (en) * 2020-11-06 2021-03-02 北京工业大学 Wireless communication control system and method for hydraulic retarder bridge facing articulated vehicle
CN113002504A (en) * 2021-04-28 2021-06-22 一汽解放汽车有限公司 Hydraulic retarder control device and control method based on switch type electromagnetic valve
CN115059717A (en) * 2022-07-28 2022-09-16 成都九鼎科技(集团)有限公司 Damping stepless adjustable vehicle suspension shock absorber

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102947146A (en) * 2010-03-03 2013-02-27 沃依特专利有限责任公司 Hydrodynamic retarder and method for operating a hydrodynamic retarder
CN102947146B (en) * 2010-03-03 2015-10-07 福伊特专利有限公司 Hydrodynamic retarder and the method for running hydrodynamic retarder
CN101839783A (en) * 2010-06-01 2010-09-22 深圳市特尔佳科技股份有限公司 System and method for testing hydrodynamic retarder
CN101837738A (en) * 2010-06-13 2010-09-22 深圳市特尔佳科技股份有限公司 Hydrodynamic retarder drive controller and control method thereof
CN101949424A (en) * 2010-08-31 2011-01-19 南京常荣噪声控制环保工程有限公司 Vibration absorber capable of regulating and controlling frequency automatically
CN101949424B (en) * 2010-08-31 2012-05-02 南京常荣噪声控制环保工程有限公司 Vibration absorber capable of regulating and controlling frequency automatically
CN105008187A (en) * 2013-03-08 2015-10-28 卡特彼勒公司 Retarding downshift management
CN105008187B (en) * 2013-03-08 2018-06-05 卡特彼勒公司 Slow downshift management
CN105263769B (en) * 2013-06-21 2018-03-13 宝马股份公司 Method for brake motor-car
CN105263769A (en) * 2013-06-21 2016-01-20 宝马股份公司 Method for braking a motor vehicle
CN104875733A (en) * 2014-02-28 2015-09-02 林会明 Hydraulic retarder control system and control method
CN105114488A (en) * 2015-09-09 2015-12-02 中国重汽集团济南动力有限公司 Water temperature control method of AMT vehicle type hydraulic retarder and control system thereof
CN105691369A (en) * 2016-03-01 2016-06-22 宁波华盛联合制动科技有限公司 Control system used for accurately sensing air pressure of hydrodynamic retarder
CN105697606A (en) * 2016-03-01 2016-06-22 宁波华盛联合制动科技有限公司 Shell structure for accurately testing oil pressure of hydraulic retarder
CN105691369B (en) * 2016-03-01 2018-09-18 宁波华盛联合制动科技有限公司 A kind of control system for accurately sensing Retarder pneumatics
CN106402208A (en) * 2016-11-03 2017-02-15 宁波华盛联合制动科技有限公司 Hydraulic retarder pressure rise control system
CN107194123A (en) * 2017-06-22 2017-09-22 北京理工大学 Retarder braking ability emulation mode and device
CN107194123B (en) * 2017-06-22 2019-08-20 北京理工大学 Retarder braking ability emulation mode and device
CN108443357A (en) * 2018-04-10 2018-08-24 深圳市特尔佳信息技术有限公司 The control method of Retarder and engine exhaust Associated brake
CN108639036A (en) * 2018-04-10 2018-10-12 深圳市特尔佳信息技术有限公司 Retarder braking method and brake control method
CN112428946A (en) * 2020-11-06 2021-03-02 北京工业大学 Wireless communication control system and method for hydraulic retarder bridge facing articulated vehicle
CN113002504A (en) * 2021-04-28 2021-06-22 一汽解放汽车有限公司 Hydraulic retarder control device and control method based on switch type electromagnetic valve
CN115059717A (en) * 2022-07-28 2022-09-16 成都九鼎科技(集团)有限公司 Damping stepless adjustable vehicle suspension shock absorber

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Address after: A1406, building 12, Shenzhen Bay science and technology ecological park, No. 18, Keji South Road, high tech Zone, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province

Patentee after: Shenzhen Dawei Innovation Technology Co., Ltd

Address before: 518000, Baisha building, Shahe West Road, Nanshan District, Guangdong, Shenzhen 406, China

Patentee before: SHENZHEN TERCA TECHNOLOGY Co.,Ltd.