CN202914593U - Control system of electronic control hydraulic retarder - Google Patents
Control system of electronic control hydraulic retarder Download PDFInfo
- Publication number
- CN202914593U CN202914593U CN 201220561796 CN201220561796U CN202914593U CN 202914593 U CN202914593 U CN 202914593U CN 201220561796 CN201220561796 CN 201220561796 CN 201220561796 U CN201220561796 U CN 201220561796U CN 202914593 U CN202914593 U CN 202914593U
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- retarder
- oil
- control system
- hydraulic retarder
- controller
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Abstract
The utility model provides a control system of an electronic control hydraulic retarder. The control system of the electronic control hydraulic retarder comprises a gear control handle, a controller and a working return circuit of the hydraulic retarder, wherein the working return circuit of the hydraulic retarder comprises a working cavity and a circulating oil circuit, the working cavity of the hydraulic retarder, a radiator and an oil bottom shell are sequentially connected through the circulating oil circuit, and a gas source is connected with the oil bottom shell through a proportional electromagnetic valve. The controller is connected with a signal wire of the gear control handle, a revolution speed sensor, an oil temperature sensor, a water temperature sensor and the proportional electromagnetic valve, wherein the revolution speed sensor is used for collecting the revolution speed of a rotor of the working cavity, the oil temperature sensor is used for collecting the oil temperature of an oil outlet of the working cavity, and the water temperature sensor is used for collecting the water temperature of a water outlet of the radiator. The control system of the electronic control hydraulic retarder is simple in structure, the gas source which is arranged on an automobile is utilized so that the control system can be independently connected on the rear portion of a speed changer or a transmission shaft of the automobile, a speed sensor of the speed changer is used as a feedback to conduct controlling of the retarder, and the control system of the electronic control hydraulic retarder is easy to machine and high in integration level.
Description
[technical field]
The utility model relates to automobile technical field, particularly a kind of control system of electric control hydraulic retarder.
[background technique]
Retarder is as the auxiliary braking system parts of vehicle, claim again the 3rd braking system, it alleviates the load of former car braking system friction plate by acting on transmission system, vehicle is evenly slowed down, to improve the reliability of motor vehicle braking system, prolong the working life of braking system, and decrease vehicle user cost therefrom.Existing Vehicle Hydraulic Retarder, the effect of liquid stream is the heat energy of liquid with the kinetic transformation of vehicle in the dependence active wheel, the mode by the cooler heat radiation realizes car brakeing again.According to the shape of hydrodynamic retarder active chamber and shape and the angle of blade, and the situation of whole oil circuit has determined the internal characteristic of hydrodynamic retarder.Prior art generally all is that the internal characteristic with hydrodynamic retarder is input in the not volatile storage, and carries out the signals such as collecting temperature, pressure, the speed of a motor vehicle in order to carry out the intelligent control of closed loop by High Performance SCM.Adjusting by intelligence can realize higher braking travelling comfort and Security (such as guaranteeing that vehicle is with the constant speed lower long slope).
Existing hydrodynamic retarder adopts the way that integrates with gearbox mostly, the oil pump that utilizes gearbox partially or completely provides retarder required fluid, hydrodynamic retarder can use the lubricating oil of speed changer like this, and can utilize the speed changer radiator to dispel the heat.Can reach very high integrated result by such design.But this has brought very high difficulty with regard to the design of giving speed changer, so that the design of speed changer, processing etc. are too complicated.Not all vehicle all needs equipped hydrodynamic retarder, and unlikely too much in order to make the model of producing component, most enterprise uses unified case of transmission, has caused like this difficulty and unnecessary such as design, casting, processing.For the delivered vehicle of the equipped hydrodynamic retarder of existing a lot of needs, just mean and speed changer will be changed together if install hydrodynamic retarder additional, caused larger renewal cost.Especially this speed changer that carries hydrodynamic retarder mostly is automatic transmission, and technology is many, and price is high by the monopolization of external trans-corporation, has seriously like this restricted the use of hydrodynamic retarder in China.
Most of oil pump, accumulator, complicated oil duct, pressure transducer, the complex control valve bodies etc. of using of existing hydrodynamic retarder form closed loop control system; The production and processing required precision is high, and control strategy is complicated.
[model utility content]
The purpose of this utility model provides a kind of control system of electric control hydraulic retarder, to solve the problems of the technologies described above.
To achieve these goals, the utility model adopts following technological scheme:
A kind of control system of electric control hydraulic retarder comprises the work loop of gear Joystick, controller and hydrodynamic retarder; The work loop of hydrodynamic retarder comprises active chamber and circulating oil path; The active chamber of hydrodynamic retarder, radiator, oil sump connect successively by circulating oil path; Source of the gas passing ratio solenoid valve connects oil sump; Cooling-water temperature sensor and the proportional electromagnetic valve of the speed probe of the signaling line of controller connection gear Joystick, the rotor speed in collecting work chamber, the oil temperature sensor of collecting work chamber oil outlet oil temperature, collection radiator outlet water temperature.
The utility model further improves and is: described controller is with nonvolatile memory.
The utility model further improves and is: described controller also connects automotive CAN network.
The utility model further improves and is: be provided with throttle valve between active chamber and the radiator; On the proportional electromagnetic valve or the end that connects the gas exhaust piping of proportional electromagnetic valve silencing apparatus is installed.
With respect to prior art, the utlity model has following advantage: the utility model is simple in structure, utilize the vehicle self-carrying source of the gas, can independently be connected on speed changer rear portion or the vehicular transmission shaft, utilize TSS Transmission Speed Sensor to carry out the control of retarder as feedback, be easy to processing, level of integration is high.
[description of drawings]
Fig. 1 is fundamental diagram of the present utility model.
Fig. 2 is the utility model Joystick figure.
Fig. 3 is the utility model control unit electrical signal skeleton diagram.
Fig. 4 is the utility model constant speed control flow chart.
[embodiment]
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
See also shown in Figure 1ly, the control system of a kind of electric control hydraulic retarder of the utility model comprises the work loop of gear Joystick, controller, proportional electromagnetic valve 7, oil temperature sensor, cooling-water temperature sensor, speed probe and hydrodynamic retarder.The work loop of hydrodynamic retarder is comprised of active chamber and the circulating oil path 5 that rotor 1 and stator 2 form.This is the work loop composition form of most hydrodynamic retarder, can be considered known technology, is not giving unnecessary details herein.
The active chamber of hydrodynamic retarder, throttle valve 10, radiator 6, oil sump 4 connect successively by circulating oil path 5; Source of the gas 8 passing ratio solenoid valves 7 connect oil sump 4.The running shaft 3 of the rotor 1 of the active chamber of hydrodynamic retarder is provided with the speed probe of measuring rotor 1 rotational speed, and the oil outlet of active chamber is provided with oil temperature sensor, and the water outlet of radiator 6 is provided with cooling-water temperature sensor.Cooling-water temperature sensor and the proportional electromagnetic valve 7 of the speed probe of the rotary shaft rotating speed of the signaling line of controller connection gear Joystick, the rotor in collecting work chamber, the oil temperature sensor of collecting work chamber oil outlet oil temperature, collection radiator outlet water temperature.On the proportional electromagnetic valve 7 or the end that connects the gas exhaust piping of proportional electromagnetic valve 7 also be connected with silencing apparatus 9.
The switch control of hydrodynamic retarder is controlled by the driver.The driver provides handle shift signal D by manual control gear lever handle to controller, and manual handle is installed on the steering column as shown in Figure 2, and it is divided into six gears, and the position is respectively: 0 gear, 1 gear, 2 gears, 3 gears, 4 gears, 5 gears.Function is as shown in table 1 below:
| Gear | The gear functional description |
| 0 | Retarder is not worked |
| 1 | Retarder is operated in the |
| 2 | The retarder braking moment is 25 ﹪ of maximum braking moment |
| 3 | The retarder braking moment is 50 ﹪ of maximum braking moment |
| 4 | The retarder braking moment is 75 ﹪ of maximum braking moment |
| 5 | The retarder braking moment is 100 ﹪ of maximum braking moment |
Controller of the present utility model comprises the processing unit that High Performance SCM forms and has non-volatile data storage.Basic retarder performance diagram through the pretest demarcation; Oil temperature, water temperature are with the limit boundary conditions performance plot of engine speed and the speed of a motor vehicle; Constant speed speed is poor adjusts performance plot and adjustment algorithm thereof with electric current; The controller output current that each gear is corresponding; And operation program all is stored in the non-volatile data memory between parameter.Tach signal C, handle shift signal D that the water temperature signal B that the oil temperature signal A that controller Real-time Collection oil temperature sensor gathers, cooling-water temperature sensor gather, speed probe gather, and by the operation program of the interior setup parameter of contrast nonvolatile memory according to setting, calculate and answer accordingly output signal, in the utility model, refer to the control electric current E that sends to proportional electromagnetic valve and the communication signal F that sends to car load CAN network.And can determine whether retarder normal operation and whether work in the holely by reading water temperature and oil temperature and rotating speed of transmission shaft signal, and can regulate the work of retarder by being stored in boundary conditions in the nonvolatile memory and the operation program of processing.
The working procedure of the control system of the utility model electric control hydraulic retarder is as follows: the rotor 1 of retarder does not have fluid in the active chamber along with transmission shaft 3 rotations when retarder is not worked, retarder does not produce braking moment.The driver can pull the work gear that Joystick is selected retarder, and at this moment Joystick will provide required shift signal D to controller.Controller is controlled electric current E according to shift signal according to parameter comparison example pressure solenoid valve 7 outputs that are stored in the nonvolatile storage.Ratio pressure solenoid valve 7 under the effect of control electric current to adjustings of reducing pressure of the pressurized gas from source of the gas by gas circuit 8, can generation after electromagnetic force, spring force and delivery pressure balance one stable gas pressure above the fluid of oil sump 4.The controlled gas pressure of fluid enters active chamber by oil hydraulic circuit by the center of stator 2, fluid under rotor 1 blade drives in active chamber circulation impact, the moment of momentum changes, and produces braking moment.High-voltage oil liquid is discharged active chamber by the cylindrical oil outlet of stator 2.In oil outlet end is provided with the active chamber that throttle valve 10 makes, can form lasting back pressure, can also change by the size that changes the throttle valve aperture retarder work internal characteristic, in order to make this retarder can be in the situation that very little change seriation.Fluid enters radiator 6 through behind the throttle valve 10, and radiator is cooled off by the cooling liquid from motor, the mechanical energy of rotating machinery is converted into the heat energy of working liquid body by radiator 6, by cooling mechanism heat is taken away.Cooled fluid returns oil sump 4 by oil hydraulic circuit 5.
The below illustrates its working strategies with the example that is controlled to be that retarder is in the constant speed gear: as shown in Figure 4, when control unit receives the gear lever handle signal D signal that Joystick transmits, controller at first determines whether neutral, as is then shut electromagnetic valve of neutral, and retarder is not worked.Then retarder determines whether the constant speed gear, and as not being that the constant speed gear then judges it is what gear, controller wherein calls the performance plot of gear and control electric current from storage, to solenoid valve output control electric current.
As being judged as constant speed gear, buffer controller records the tach signal that speed probe this moment transmits, and is converted to vehicle speed signal V1 by relevant operational formula.As be connected with the constant speed speed of a motor vehicle that display instrument can show current setting.Then judge the vehicle velocity V of Real-time Collection and the value of delta of constant speed V1, when δ＜0 controller shut electromagnetic valve, retarder quits work; As δ〉0 the time, the δ that transfers storage determines output control electric current with output control current characteristics figure by setting operation program, to solenoid valve output control electric current, the work of control retarder.In the process of retarder work, monitor at any time the situation of oil temperature, water temperature, judge whether oil temperature, water temperature are above standard, boundary adjustment performance plot in the contrast storage provides the adjustment parameter to controller, controller is according to the boundary adjustment parameter and set δ and output control current relationship, according to setting the final control electric current of operation program output, the control retarder is worked under the constant speed operating mode.
The utility model also can improve the precision of its braking moment that produces in the degree of regulation that changes hydrodynamic retarder active chamber internal pressure.Hydrodynamic retarder can be realized the generation of braking moment and accurately control as follows, the preset control air pressure (in the utility model, referring to the control air pressure that is produced by the ratio pressure solenoid valve) of namely when retarder moves, carry out setting, the hydrodynamic retarder stable operation the time will set up stable inlet/outlet pressure and braking moment.And the working state that can utilize by the way adjustable oil hydraulic circuit and variation gathers out this hydrodynamic retarder and follows the braking characteristic curve that pilot pressure changes.It is stored in the controller as a basic parameter, so that controller contrasts.
Regulate for realizing accurate braking moment; the braking moment difference that the hydrodynamic retarder that minimizing causes owing to machining, assembling, valve body otherness etc. produces under the pre-conditioned pressing pressure; for the boundary conditions of protecting hydrodynamic retarder working life and brake comfort etc. to require; signal back controller by the sensor Real-time Collection carries out accurate regulation and control according to the calculative strategy that presets in the storage unit in controller and the regulation unit.The advantage of making so in addition can be in the situation that do not change original mechanical structure and carry out the vehicle that mates different needs with the money retarder required according to changing characteristic curve and the adjustment parameter and control strategy of storing in the controller.
The variation of the vehicle speed sensor signal by speed changer can judge whether hydrodynamic retarder is working properly, can be associated with the control atmospheric pressure by the variation of the speed of a motor vehicle, and the characteristic curve between changing according to the vehicle speed deviation of setting and pilot pressure carries out the control of vehicle constant speed, can improve the braking quality by control strategy and the adjustment parameter optimized.
Hydrodynamic retarder control system of the present utility model is the input signal according to driving switch and sensor, the primary characteristic curve of the boundary conditions of reference settings and storage and adjust the function controlling that adjusting that parameter compares the control electric current of routine pressure solenoid valve realizes hydrodynamic retarder.Here said electric current to regulate be by the PWM(pulsewidth modulation in the controller) the analog line driver pulsewidth (being so-called dutycycle) of removing to change the proportion electro-magnet that leads to the ratio pressure solenoid valve changes the power output characteristics that the electric current that reaches proportion electro-magnet changes proportion electro-magnet, the electromagnetic force of proportion electro-magnet is to the thrust balancing device place of solenoid valve inside, the pressure adjustment that sets.
Its concrete adjusting method is the off-line test and demarcate and to convert the characteristic curve of the braking moment characteristic of retarder and the pilot pressure characteristic by known proportional electromagnetic valve to the dutycycle that is stored in the controller and the characteristic curve of braking moment of dispatching from the factory by hydrodynamic retarder namely.When being higher than the highest demarcation temperature, oil temperature or cooling-water temperature sensor detected temperatures reduce the action of controller output duty cycle, to change the braking moment of hydrodynamic retarder.
The utility model provides a kind of vehicle self-carrying source of the gas that utilizes, and independently can be connected on speed changer rear portion or the vehicular transmission shaft, utilizes TSS Transmission Speed Sensor as the easy processing of feedback, the hydrodynamic retarder control system that level of integration is high.
Claims (4)
1. the control system of an electric control hydraulic retarder is characterized in that, comprises the work loop of gear Joystick, controller and hydrodynamic retarder; The work loop of hydrodynamic retarder comprises active chamber and circulating oil path; The active chamber of hydrodynamic retarder, radiator, oil sump connect successively by circulating oil path; Source of the gas passing ratio solenoid valve connects oil sump; Cooling-water temperature sensor and the proportional electromagnetic valve of the speed probe of the signaling line of controller connection gear Joystick, the rotor speed in collecting work chamber, the oil temperature sensor of collecting work chamber oil outlet oil temperature, collection radiator outlet water temperature.
2. the control system of a kind of electric control hydraulic retarder according to claim 1 is characterized in that, described controller is with nonvolatile memory.
3. the control system of a kind of electric control hydraulic retarder according to claim 1 is characterized in that, described controller also connects automotive CAN network.
4. the control system of a kind of electric control hydraulic retarder according to claim 1 is characterized in that, is provided with throttle valve between active chamber and the radiator; On the proportional electromagnetic valve or the end that connects the gas exhaust piping of proportional electromagnetic valve silencing apparatus is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561796 CN202914593U (en) | 2012-10-29 | 2012-10-29 | Control system of electronic control hydraulic retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561796 CN202914593U (en) | 2012-10-29 | 2012-10-29 | Control system of electronic control hydraulic retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914593U true CN202914593U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220561796 Expired - Lifetime CN202914593U (en) | 2012-10-29 | 2012-10-29 | Control system of electronic control hydraulic retarder |
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| Country | Link |
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| CN (1) | CN202914593U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875733A (en) * | 2014-02-28 | 2015-09-02 | 林会明 | Hydraulic retarder control system and control method |
| CN105003569A (en) * | 2015-07-30 | 2015-10-28 | 袁廷华 | Hydrodynamic retarder |
| CN105697595A (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 water temperature of hydraulic retarder |
| CN106740775A (en) * | 2016-11-04 | 2017-05-31 | 宁波华盛联合制动科技有限公司 | The intelligence control system and its method of a kind of Retarder |
| CN106965791A (en) * | 2017-04-13 | 2017-07-21 | 安徽江淮汽车集团股份有限公司 | A kind of truck retarder control system |
| CN108918156A (en) * | 2018-05-14 | 2018-11-30 | 武汉理工大学 | A kind of Retarder formula simulated loading system |
| CN113738793A (en) * | 2021-09-09 | 2021-12-03 | 北京裕峻汽车技术研究院有限公司 | Braking system and control method of hydraulic retarder |
| CN114017490A (en) * | 2021-10-13 | 2022-02-08 | 岚图汽车科技有限公司 | Transmission thermal management control method and system and electronic equipment |
| CN114396440A (en) * | 2021-12-23 | 2022-04-26 | 陕西法士特齿轮有限责任公司 | Independent assembly type front retarder system and control method |
| CN114738400A (en) * | 2022-03-12 | 2022-07-12 | 富奥汽车零部件股份有限公司 | Hydraulic retarder oil circuit control system |
| CN114919553A (en) * | 2022-05-25 | 2022-08-19 | 中国北方车辆研究所 | Control method of high-power hydraulic retarder |
| CN115451039A (en) * | 2022-09-14 | 2022-12-09 | 一汽解放汽车有限公司 | Integrated hydraulic retarder system and control method |
-
2012
- 2012-10-29 CN CN 201220561796 patent/CN202914593U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875733A (en) * | 2014-02-28 | 2015-09-02 | 林会明 | Hydraulic retarder control system and control method |
| CN105003569A (en) * | 2015-07-30 | 2015-10-28 | 袁廷华 | Hydrodynamic retarder |
| CN105697595A (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 water temperature of hydraulic retarder |
| CN106740775A (en) * | 2016-11-04 | 2017-05-31 | 宁波华盛联合制动科技有限公司 | The intelligence control system and its method of a kind of Retarder |
| CN106965791A (en) * | 2017-04-13 | 2017-07-21 | 安徽江淮汽车集团股份有限公司 | A kind of truck retarder control system |
| CN108918156A (en) * | 2018-05-14 | 2018-11-30 | 武汉理工大学 | A kind of Retarder formula simulated loading system |
| CN113738793A (en) * | 2021-09-09 | 2021-12-03 | 北京裕峻汽车技术研究院有限公司 | Braking system and control method of hydraulic retarder |
| CN114017490A (en) * | 2021-10-13 | 2022-02-08 | 岚图汽车科技有限公司 | Transmission thermal management control method and system and electronic equipment |
| CN114017490B (en) * | 2021-10-13 | 2023-06-30 | 岚图汽车科技有限公司 | Transmission thermal management control method and system and electronic equipment |
| CN114396440A (en) * | 2021-12-23 | 2022-04-26 | 陕西法士特齿轮有限责任公司 | Independent assembly type front retarder system and control method |
| CN114738400A (en) * | 2022-03-12 | 2022-07-12 | 富奥汽车零部件股份有限公司 | Hydraulic retarder oil circuit control system |
| CN114738400B (en) * | 2022-03-12 | 2023-06-30 | 富奥汽车零部件股份有限公司 | Hydraulic retarder oil circuit control system |
| CN114919553A (en) * | 2022-05-25 | 2022-08-19 | 中国北方车辆研究所 | Control method of high-power hydraulic retarder |
| CN114919553B (en) * | 2022-05-25 | 2023-03-24 | 中国北方车辆研究所 | Control method of high-power hydraulic retarder |
| CN115451039A (en) * | 2022-09-14 | 2022-12-09 | 一汽解放汽车有限公司 | Integrated hydraulic retarder system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |