WO2012062182A1 - 无级变速箱用湿式离合器的自适应控制方法及控制系统 - Google Patents

无级变速箱用湿式离合器的自适应控制方法及控制系统 Download PDF

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Publication number
WO2012062182A1
WO2012062182A1 PCT/CN2011/081770 CN2011081770W WO2012062182A1 WO 2012062182 A1 WO2012062182 A1 WO 2012062182A1 CN 2011081770 W CN2011081770 W CN 2011081770W WO 2012062182 A1 WO2012062182 A1 WO 2012062182A1
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WO
WIPO (PCT)
Prior art keywords
continuously variable
variable transmission
wet clutch
control system
adaptive control
Prior art date
Application number
PCT/CN2011/081770
Other languages
English (en)
French (fr)
Inventor
巩翔宇
Original Assignee
奇瑞汽车股份有限公司
芜湖普威技研有限公司
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Publication of WO2012062182A1 publication Critical patent/WO2012062182A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/066—Control of fluid pressure, e.g. using an accumulator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/424—Friction clutches
    • B60Y2400/4244—Friction clutches of wet type, e.g. using multiple lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F16D2500/10412—Transmission line of a vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/108—Gear
    • F16D2500/1081—Actuation type
    • F16D2500/1085—Automatic transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/108—Gear
    • F16D2500/1088—CVT
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/305—Signal inputs from the clutch cooling
    • F16D2500/3055—Cooling oil properties
    • F16D2500/3058—Cooling oil pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/31—Signal inputs from the vehicle
    • F16D2500/3108—Vehicle speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/314—Signal inputs from the user
    • F16D2500/31406—Signal inputs from the user input from pedals
    • F16D2500/3144—Accelerator pedal position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/501—Relating the actuator
    • F16D2500/5014—Filling the actuator cylinder with fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/52—General
    • F16D2500/525—Improve response of control system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70402—Actuator parameters
    • F16D2500/7041—Position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70402—Actuator parameters
    • F16D2500/7041—Position
    • F16D2500/70414—Quick displacement to clutch touch point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/706—Strategy of control
    • F16D2500/70605—Adaptive correction; Modifying control system parameters, e.g. gains, constants, look-up tables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
    • F16H2061/064—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means for calibration of pressure levels for friction members, e.g. by monitoring the speed change of transmission shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2342/00—Calibrating
    • F16H2342/04—Calibrating engagement of friction elements

Definitions

  • the present invention relates to the field of wet clutch control for a continuously variable transmission of an automobile, and in particular to an adaptive control method and control system for a wet clutch for a continuously variable transmission.
  • the control object of the wet clutch is the oil-filled oil pressure
  • the control target is the coupling time of the clutch and the shifting quality, that is, the gear shifting is comfortable and smooth in the use of the vehicle during use.
  • the book clutch may exhibit excessive bonding time or poor shift quality and impact on the whole vehicle, thereby causing passenger complaints.
  • the present invention is directed to the above deficiencies, and provides an adaptive control method and a control system for a wet clutch for a continuously variable transmission, which can be set according to the instantaneous selection of the wet clutch for the continuously variable transmission, and the setting of the control system itself.
  • the reference value is compared, and the wet clutch hydraulic pressure of the continuously variable transmission can be adaptively controlled, thereby achieving the purpose of controlling the wet clutch engagement time and the shift quality of the continuously variable transmission.
  • An adaptive control method for a wet clutch for a continuously variable transmission includes the following processes:
  • the oil-filled oil pressure data table of the continuously variable transmission wet clutch reads the data stored in the electrically erasable programmable read-only memory in the adaptive control system;
  • the adaptive control system collects information on the actual combined time of the wet clutch for the continuously variable transmission
  • step D compares the actual combined time of the collected continuously variable clutch with the pre-set target combined time, if it exceeds the target combined time range, step D is performed;
  • the adaptive control system calculates the oil-filled oil pressure value to be adjusted according to the actual combined time of the wet clutch of the continuously variable transmission, and sends the value to the electrically erasable programmable read-only memory for storage. Oil pressure data sheet next time Read
  • the adaptive control system controls the hydraulic pressure control of the continuously variable transmission wet clutch according to the oil-filled oil pressure value calculated in step D.
  • Step B also includes the step of collecting the current working condition information of the vehicle.
  • Step C further includes the step of determining that the operating condition information satisfies the adaptive condition of the adaptive control system, activates the adaptive function, and performs oil pressure control on the continuously variable transmission wet clutch.
  • the operating condition information includes the vehicle speed or the accelerator pedal working state.
  • An adaptive control system for a wet clutch for a continuously variable transmission comprising an actual oil filling time monitoring module, a standard oil filling time setting module and an application layer software function module, wherein the actual oil filling time monitoring module It is used to collect information on the actual combined time of the wet clutch for the continuously variable transmission; the standard oil filling time setting module is used to set the target coupling time of the wet clutch for the continuously variable transmission; the application layer software function module is used to compare the actual The actual combined time of the wet clutch for the continuously variable transmission collected by the oil filling time monitoring module is combined with the target combined time of the wet clutch for the continuously variable transmission set in the standard oil filling time setting module, and the comparison result is sent to Application layer software function module.
  • the adaptive control system also includes an underlying software execution adaptive function module for storing the comparison results obtained by the application layer software function module and performing adaptive calculations to control the wet clutch hydraulic pressure for the continuously variable transmission.
  • the adaptive control system also includes a current operating condition detection module for collecting information on vehicle speed and accelerator pedal operating conditions.
  • the invention relates to an adaptive control method and a control system for a wet clutch for a continuously variable transmission.
  • the control system can perform on-line intelligent adjustment and automatically optimize clutch engagement time. And the shift quality, with strong adaptability, the results can fully meet the control requirements.
  • the implementation of the adaptive algorithm in the control system allows the clutch transmission quality of the automatic transmission to maintain optimum performance throughout its life cycle, ensuring smooth shift times and quality.
  • FIG. 1 is a block diagram showing the system configuration of an adaptive control method and a control system for a wet clutch for a continuously variable transmission according to the present invention
  • FIG. 2 is a flow chart of an adaptive control method and a control system of a wet clutch for a continuously variable transmission according to the present invention. detailed description
  • an adaptive control system for a wet clutch for a continuously variable transmission comprises an actual oil filling time monitoring module 101 , a standard oil filling time setting module 102 and an application thereof
  • the layer software function module 103 wherein the actual oil filling time monitoring module 101 is used for information collection on the actual bonding time of the wet clutch for the continuously variable transmission; the standard oil filling time setting module 102 is used for setting the continuously variable transmission
  • the application layer software function module 103 is used to compare the actual bonding time of the wet clutch for the continuously variable transmission collected by the actual oil filling time monitoring module 101 with the setting of the standard oil filling time setting module 102.
  • the target of the wet clutch for the continuously variable transmission is combined with the time, and the comparison result is sent to the application layer software function module 103.
  • the adaptive control system also includes an underlying software execution adaptive function module 104 for storing the alignment results obtained by the application layer software function module 103 and performing adaptive calculations to control the wet clutch hydraulic pressure for the continuously variable transmission.
  • the adaptive control system also includes a current condition detection module 105 for collecting information on vehicle speed and accelerator pedal operating conditions.
  • Example 2
  • an adaptive control method for a wet clutch for a continuously variable transmission includes the following processes:
  • the oil-filled oil pressure data table of the continuously variable transmission wet clutch reads data stored in the electrically erasable programmable read-only memory in the adaptive control system.
  • the wireless transmission includes an automatic transmission control unit, an oil-filled oil pressure data table, a solenoid valve, and a wet clutch for a continuously variable transmission, and the data stored in the electrically erasable programmable read only memory in the adaptive control system. It includes at least the oil-filled oil pressure value of the wet clutch for the continuously variable transmission.
  • the oil-filled oil pressure data table reads the stored data from the electrically erasable programmable read only memory in the adaptive control system, and the read data includes at least oil-filled oil pressure Value, initialize the oil-filled oil pressure data table according to the read oil-filled oil pressure value;
  • the automatic transmission control unit is based on the oil-filled oil in the oil-filled oil pressure data sheet.
  • the pressure value, the control solenoid valve is filled with oil to the continuously variable transmission with a wet clutch.
  • the oil-filled oil pressure data table will clear all the data stored by itself, so the initial value of the oil-filled oil pressure data table needs to be initialized when the automatic transmission control unit is powered on.
  • the adaptive control system can monitor the continuously variable transmission in real time.
  • the transmission control unit controls the solenoid valve to start to charge the continuously clutch with the wet clutch
  • the adaptive control system starts to time from zero, when it is monitored.
  • the timing is stopped, and the time counted is used as the actual combined time of the wet clutch for the continuously variable transmission, and the actual combined time of the wet clutch for the continuously variable transmission is thus collected.
  • the actual combined time of the wet clutch for the continuously variable transmission is determined by the amount of oil to be filled, and if the automatic transmission control unit is charged to the continuously variable transmission with the wet clutch according to the oil-filled hydraulic pressure value, The actual combined time of the wet clutch for the continuously variable transmission collected by the adaptive control system is smaller. If the automatic transmission control unit is used to charge the continuously variable transmission with the wet clutch, the amount of oil is less. The actual combined time of the wet clutch for the continuously variable transmission collected by the adaptive control system is greater.
  • the working condition information of the vehicle includes at least a throttle opening value of the accelerator pedal; the accelerator pedal of the vehicle broadcasts its own throttle opening value to the bus bus of the vehicle in real time, wherein when the accelerator pedal is depressed by the driver of the vehicle When the accelerator pedal broadcasts the throttle opening value is 100%; when the accelerator pedal is released by the driver of the vehicle, the accelerator pedal broadcasts a throttle opening value of 0.
  • the adaptive control system can read the current working condition information of the vehicle from the bus bus of the vehicle, at least the throttle opening value of the accelerator pedal, and thus collect the current working condition information of the vehicle.
  • the adaptive control system compares the actual combined time of the collected infinitely variable transmission with the wet clutch and the preset combined time of the target, and determines whether the working condition information satisfies the adaptive condition of the adaptive control system, if If the result exceeds the range of the target combining time and the operating condition information satisfies the adaptive condition of the adaptive control system, step 204 is performed.
  • the adaptive condition is that the accelerator pedal has a throttle opening value of zero.
  • the adaptive control system compares the actual combined time of the wet clutch for the continuously variable transmission with the preset target combined time. If the actual combined time of the wet clutch for the continuously variable transmission is greater than the target combined time, the comparison result is obtained.
  • the actual combined time of the wet clutch for the continuously variable transmission exceeds the range of the target combined time; determining whether the throttle opening value of the accelerator pedal included in the current working condition information of the vehicle is 0, and if so, determining the current working condition of the vehicle The information satisfies the adaptive conditions of the adaptive control system.
  • the actual combined time of the wet clutch for the continuously variable transmission is determined by the automatic transmission control unit according to the oil-filled oil pressure
  • the value is determined by the amount of oil that is filled with the wet clutch of the continuously variable transmission.
  • the actual combined time of the wet clutch for the continuously variable transmission is greater than the target combined time, that is, the combined time of the wet clutch for the continuously variable transmission is too long, due to the automatic
  • the transmission control unit is caused by insufficient oil in the wet clutch of the continuously variable transmission based on the oil-filled oil pressure value. If the oil-filled oil pressure value can be adjusted, the automatic transmission control unit can reduce the wet clutch of the continuously variable transmission according to the adjusted oil-filled oil pressure value to fill the continuously clutch with the wet clutch with a sufficient amount of oil. The actual combination time, so as to avoid the vehicle with poor shift quality and impact.
  • the adaptive control system calculates the oil-filled oil pressure value to be adjusted according to the actual combined time of the wet clutch of the continuously variable transmission, and sends the value to the underlying software, and the activation signal obtained by the bottom software together with the charge to be adjusted
  • the oil pressure value is sent to the electrically erasable programmable read-only memory for storage, so that the oil-filled oil pressure data table is read next time.
  • the technician has previously configured the correspondence relationship between the combined time range and the oil-filled oil pressure value in the adaptive control system, and each record in the correspondence relationship between the combined time range and the oil-filled oil pressure value is based on a large number of technicians.
  • the experimental data obtained.
  • the adaptive control system determines a combination time range in which the real-time bonding time of the wet clutch for the continuously variable transmission is located, and finds a corresponding charging from the correspondence relationship between the combined time range and the oil-filled oil pressure value according to the determined combination time range.
  • the oil pressure value, the value of the oil-filled oil value to be found is the value of the oil-filled oil pressure to be adjusted, so that the oil-filled oil pressure value to be adjusted is calculated according to the actual combined time of the wet clutch for the continuously variable transmission.
  • the adaptive control system sends the adjusted oil-filled oil pressure value to the underlying software.
  • the underlying software obtains the activation signal together with the oil-filled oil pressure value that needs to be adjusted to be erasable.
  • Programmable read-only memory Programmable read-only memory.
  • the oil-filled oil pressure data table reads the stored data from the electrically erasable programmable read only memory in the adaptive control system, and the read data includes at least the adjusted charge.
  • Oil pressure value initialize the oil-filled oil pressure data table according to the adjusted oil-filled oil pressure value;
  • the automatic transmission control unit is adjusted according to the oil-filled oil pressure data table.
  • the oil-filled oil pressure value controls the solenoid valve to charge the continuously variable transmission with the wet clutch with a sufficient amount of oil. This can reduce the actual coupling time of the wet clutch for the continuously variable transmission, and the actual combination of the wet clutch for the continuously variable transmission. The time is less than or equal to the preset target combination time, so as to avoid the situation that the vehicle has poor shift quality and impact.
  • the adaptive control system can control the oil pressure control of the continuously variable transmission wet clutch according to the oil-filled oil pressure value calculated in step 204, which can be specifically: the adaptive control system will be in the oil-filled oil pressure data table.
  • the oil-filled oil pressure value is updated to the calculated oil-filled oil pressure value that needs to be adjusted, so that when the oil is again charged to the continuously variable transmission with the wet clutch, the automatic transmission control unit is adjusted according to the oil-filled oil pressure data table.
  • Oil-filled oil pressure value, control solenoid valve Fill the CVT with a wet clutch with a sufficient amount of oil.
  • the underlying software stores the oil-filled oil pressure value to be adjusted in the electrically erasable programmable read-only memory, corrects the calibration data in the application software, and remains after the transmission control unit is powered off and then powered on. Effective, the final control of the actual clutching time of the wet clutch for the continuously variable transmission meets the target combined time requirement.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Control Of Transmission Device (AREA)

Description

无级变速箱用湿式离合器的自适应控制方法及控制系统 技术领域
本发明涉及汽车无级变速箱用湿式离合器控制领域， 具体提供一种无级变速箱用湿式 离合器的自适应控制方法及控制系统。
说
背景技术
在无级自动变速箱的控制领域， 湿式离合器的控制对象为充油油压， 控制目标为离合 器结合时间和换档质量， 即满足车辆在使用过程中换档起步舒适且平顺。
现有技术下， 由于产品的一致性及磨损的原因，书离合器在整车上会体现出结合时间过 长或换档质量差、 有冲击的情况， 从而引起乘客抱怨。
解决以上情况的方法是要对自动变速箱控制单元中的可标定数据进行优化， 而目前尚 未有无级变速箱用湿式离合器的自适应控制系统或者方法。 发明内容
本发明是针对以上不足， 提供一种无级变速箱用湿式离合器的自适应控制方法及控制 系统， 其能够根据即时获得的无级变速箱用湿式离合器结合时间， 经过与控制系统本身的 设定基准值进行对比， 进而能够自适应的对无级变速箱用湿式离合器油压进行控制， 从而 实现对无级变速箱用湿式离合器结合时间和换档质量进行控制的目的。
本发明所采用的技术方案如下：
一种无级变速箱用湿式离合器的自适应控制方法， 包括以下流程：
A、 无级变速箱湿式离合器的充油油压数据表读取自适应控制系统中的电可擦可编程只 读存储器所存储的数据；
B、 自适应控制系统对无级变速箱用湿式离合器的实际结合时间进行信息采集；
C 自适应控制系统将采集到的无级变速箱用湿式离合器的实际结合时间与预先设置好 的目标结合时间进行比较， 如果超出目标结合时间的范围内则执行步骤 D;
D、 自适应控制系统根据无级变速箱用湿式离合器的实际结合时间计算出需要调整的充 油油压值， 并将此值发送给电可擦可编程只读存储器进行存储， 以备充油油压数据表下次 读取；
E、 自适应控制系统根据步骤 D中计算出的需要调整的充油油压值控制无级变速箱湿式 离合器进行油压控制。
步骤 B中还包括对车辆当前工况信息进行采集的步骤。
步骤 C还包括判断工况信息如果满足自适应控制系统的自适应条件， 则激活自适应功 能， 对无级变速箱湿式离合器进行油压控制的步骤。
工况信息包括车辆车速或油门踏板工作状态。
一种无级变速箱用湿式离合器的自适应控制系统， 其自适应控制系统包括实际充油时 间监测模块、 标准充油时间设定模块和应用层软件功能模块， 其中， 实际充油时间监测模 块用于对无级变速箱用湿式离合器的实际结合时间进行信息采集； 标准充油时间设定模块 用于设定无级变速箱用湿式离合器的目标结合时间； 应用层软件功能模块用于比较实际充 油时间监测模块采集到的无级变速箱用湿式离合器的实际结合时间与标准充油时间设定模 块内设定的无级变速箱用湿式离合器的目标结合时间， 并将比对结果发送到应用层软件功 能模块。
自适应控制系统还包括底层软件执行自适应功能模块， 其用于存储应用层软件功能模 块获得的比对结果， 并进行自适应计算， 以控制无级变速箱用湿式离合器油压。
自适应控制系统还包括当前工况检测模块， 其用于对车辆车速及油门踏板工作状态进 行信息采集。
本发明的一种无级变速箱用湿式离合器的自适应控制方法及控制系统， 其在使用过程 中， 自动变速箱控制单元正常工作时， 控制系统可进行在线智能调参， 自动优化离合器结 合时间和换档质量， 具有很强自适应能力， 结果可完全满足控制要求。 控制系统中自适应 算法的实现可使自动变速箱的离合器结合品质在其使用周期内一直保持最佳性能， 保证换 档时间和质量的平稳。 附图说明
附图 1为本发明的一种无级变速箱用湿式离合器的自适应控制方法及控制系统的系统 构成框图；
附图 2为本发明的一种无级变速箱用湿式离合器的自适应控制方法及控制系统的方法 流程图。 具体实施方式
下面结合附图和具体实施例对本发明的一种无级变速箱用湿式离合器的自适应控制方 法及控制系统作进一步的描述。
实施例 1 : 如附图 1所示， 一种无级变速箱用湿式离合器的自适应控制系统， 其自适应 控制系统包括实际充油时间监测模块 101、标准充油时间设定模块 102和应用层软件功能模 块 103， 其中， 实际充油时间监测模块 101用于对无级变速箱用湿式离合器的实际结合时间 进行信息采集； 标准充油时间设定模块 102用于设定无级变速箱用湿式离合器的目标结合 时间； 应用层软件功能模块 103用于比较实际充油时间监测模块 101采集到的无级变速箱 用湿式离合器的实际结合时间与标准充油时间设定模块 102内设定的无级变速箱用湿式离 合器的目标结合时间， 并将比对结果发送到应用层软件功能模块 103。
自适应控制系统还包括底层软件执行自适应功能模块 104，其用于存储应用层软件功能 模块 103获得的比对结果， 并进行自适应计算， 以控制无级变速箱用湿式离合器油压。
自适应控制系统还包括当前工况检测模块 105，其用于对车辆车速及油门踏板工作状态 进行信息采集。 实施例 2:
如附图 2 所示， 本发明的一种无级变速箱用湿式离合器的自适应控制方法， 包括以下 流程：
201、 无级变速箱湿式离合器的充油油压数据表读取自适应控制系统中的电可擦可编程 只读存储器所存储的数据。
其中， 无线变速箱内包括自动变速箱控制单元、 充油油压数据表、 电磁阀和无级变速 箱用湿式离合器等， 自适应控制系统中的电可擦可编程只读存储器所存储的数据至少包括 无级变速箱用湿式离合器的充油油压值。
其中， 在自动变速箱控制单元上电时， 充油油压数据表从自适应控制系统中的电可擦 可编程只读存储器读取所存储的数据， 读取的数据至少包括充油油压值， 根据读取的充油 油压值初始化充油油压数据表； 当需要向无级变速箱用湿式离合器充油时， 自动变速箱控 制单元根据充油油压数据表中的充油油压值， 控制电磁阀向无级变速箱用湿式离合器充油。
其中， 在自动变速箱控制单元断电时， 充油油压数据表都会清除自身存储的所有数据， 因此在自动变速箱控制单元上电时需要初始化充油油压数据表的初值。
202、 自适应控制系统对无级变速箱用湿式离合器的实际结合时间以及车辆当前工况信 息进行信息采集。
其中， 自适应控制系统可以对无级变速箱进行实时监听， 当监听出变速器控制单元控 制电磁阀开始向无级变速箱用湿式离合器充油时， 自适控制系统开始从零计时， 当监听出 无级变速箱用湿式离合器的转速差消除时， 停止计时， 并将计时的时间作为无级变速箱用 湿式离合器的实际结合时间， 如此采集到无级变速箱用湿式离合器的实际结合时间。
其中， 无级变速箱用湿式离合器的实际结合时间由充油的油量决定， 如果自动变速箱 控制单元根据充油油压值向无级变速箱用湿式离合器充油的油量越多， 自适应控制系统采 集得到的无级变速箱用湿式离合器的实际结合时间就越小， 如果自动变速箱控制单元根据 充油油压值向无级变速箱用湿式离合器充油的油量越少， 自适应控制系统采集得到的无级 变速箱用湿式离合器的实际结合时间就越大。
其中， 车辆的工况信息至少包括油门踏板的节气门开度值； 车辆的油门踏板将自身的 节气门开度值实时广播到车辆的 bus总线上， 其中， 当油门踏板被车辆的司机踩下时， 油 门踏板广播的节气门开度值为 100%; 当油门踏板被车辆的司机松开时， 油门踏板广播的节 气门开度值为 0。
其中， 自适应控制系统可以从车辆的 bus总线上读取的车辆的当前工况信息， 至少包 括油门踏板的节气门开度值， 如此采集到车辆当前的工况信息。
203、 自适应控制系统将采集到的无级变速箱用湿式离合器的实际结合时间与预先设置 好的目标结合时间进行比较， 并判断工况信息是否满足自适应控制系统的自适应条件， 如 果比较结果超出目标结合时间的范围且工况信息满足自适应控制系统的自适应条件， 则执 行步骤 204，
其中， 自适应条件为油门踏板的节气门开度值为 0。
其中， 自适应控制系统比较无级变速箱用湿式离合器的实际结合时间与预先设置的目 标结合时间， 如果比较出无级变速箱用湿式离合器的实际结合时间大于目标结合时间， 得 出比较的结果为无级变速箱用湿式离合器的实际结合时间超出目标结合时间的范围； 判断 车辆当前工况信息中包括的油门踏板的节气门开度值是否为 0， 如果是， 则判断车辆当前的 工况信息满足自适应控制系统的自适应条件。
其中， 需要说明的是： 如果无级变速箱用湿式离合器的实际结合时间大于目标结合时 间， 则说明无级变速箱用湿式离合器结合时间过长， 从而导致车辆出现换档质量差、 有冲 击的情况。
其中， 无级变速箱用湿式离合器的实际结合时间由自动变速箱控制单元根据充油油压 值向无级变速箱用湿式离合器充油的油量决定的， 无级变速箱用湿式离合器的实际结合时 间大于目标结合时间， 即无级变速箱用湿式离合器的结合时间过长， 是由于自动变速箱控 制单元根据充油油压值向无级变速箱用湿式离合器充油的油量不足导致的。 如果可以调整 充油油压值， 则可以使自动变速箱控制单元根据调整后的充油油压值向无级变速箱用湿式 离合器充足够的油量的油来减少无级变速箱用湿式离合器的实际结合时间， 如此来避免车 辆出现换档质量差、 有冲击的情况。
204、 自适应控制系统根据无级变速箱用湿式离合器的实际结合时间计算出需要调整的 充油油压值， 并将此值发送给底层软件， 底层软件将得到的激活信号连同需要调整的充油 油压值发送至电可擦可编程只读存储器进行存储， 以备充油油压数据表下次读取。
其中， 技术人员事先在自适控制系统中配置了结合时间范围与充油油压值的对应关系， 且结合时间范围与充油油压值的对应关系中的每条记录是由技术人员根据大量的实验数据 获得的。
其中， 自适应控制系统确定无级变速箱用湿式离合器的实时结合时间所在的结合时间 范围， 根据确定的结合时间范围， 从结合时间范围与充油油压值的对应关系中查找出对应 的充油油压值， 查找的充油油压值为需要调整的充油油压值， 如此实现根据无级变速箱用 湿式离合器的实际结合时间计算出需要调整的充油油压值。
其中， 自适应控制系统将需要调整的充油油压值发送给底层软件， 当自动变速箱控制 单元断电时， 底层软件将得到的激活信号连同需要调整的充油油压值存储在可擦可编程只 读存储器中。
其中， 当下一次自动变速箱控制单元上电时， 充油油压数据表从自适应控制系统中的 电可擦可编程只读存储器读取所存储的数据， 读取的数据至少包括调整的充油油压值， 根 据调整的充油油压值初始化充油油压数据表； 当需要向无级变速箱用湿式离合器充油时， 自动变速箱控制单元根据充油油压数据表中调整的充油油压值， 控制电磁阀向无级变速箱 用湿式离合器充足够油量的油， 如此能够减少无级变速箱用湿式离合器的实际结合时间， 使无级变速箱用湿式离合器的实际结合时间小于或等于预设的目标结合时间， 从而避免车 辆出现换档质量差、 有冲击的情况。
其中， 自适应控制系统可以根据步骤 204中计算出的需要调整的充油油压值控制无级 变速箱湿式离合器进行油压控制， 可以具体为： 自适应控制系统将充油油压数据表中的充 油油压值更新为计算出的需要调整的充油油压值， 如此当再次向无级变速箱用湿式离合器 充油时， 使得自动变速箱控制单元根据充油油压数据表中调整的充油油压值， 控制电磁阀 向无级变速箱用湿式离合器充足够油量的油。
其中， 底层软件将需要调整的充油油压值存储在电可擦可编程只读存储器中， 对应用 软件中的标定数据起到修正作用， 并且在变速箱控制单元断电再上电后仍然有效， 最终控 制无级变速箱用湿式离合器实际结合时间满足目标结合时间的要求。 以上所述的实施例， 只是本发明较优选的具体实施方式的一种， 本领域的技术人员在 本发明技术方案范围内进行的通常变化和替换都应包含在本发明的保护范围内。

Claims

权 利 要 求 书
1、 一种无级变速箱用湿式离合器的自适应控制方法， 包括以下流程：
A、无级变速箱湿式离合器的充油油压数据表读取自适应控制系统中的电可擦可编程只读 存储器所存储的数据；
B、 自适应控制系统对无级变速箱用湿式离合器的实际结合时间进行信息采集；
C 自适应控制系统将采集到的无级变速箱用湿式离合器的实际结合时间与预先设置好的 目标结合时间进行比较， 如果超出目标结合时间的范围内则执行步骤 D;
D、自适应控制系统根据无级变速箱用湿式离合器的实际结合时间计算出需要调整的充油 油压值， 并将此值发送给电可擦可编程只读存储器进行存储， 以备充油油压数据表下次读取;
E、自适应控制系统根据步骤 D中计算出的需要调整的充油油压值控制无级变速箱湿式离 合器进行油压控制。
2、根据权利要求 1所述的一种无级变速箱用湿式离合器的自适应控制方法，其特征在于， 所述步骤 B中还包括对车辆当前工况信息进行采集的步骤。
3、根据权利要求 1或 2所述的一种无级变速箱用湿式离合器的自适应控制方法， 其特征 在于， 其中步骤 C还包括判断工况信息如果满足自适应控制系统的自适应条件， 则激活自适 应功能， 对无级变速箱湿式离合器进行油压控制的步骤。
4、根据权利要求 2或 3所述的一种无级变速箱用湿式离合器的自适应控制方法， 其特征 在于， 所述工况信息包括车辆车速或油门踏板工作状态。
5、 一种无级变速箱用湿式离合器的自适应控制系统， 其特征在于， 其自适应控制系统包 括实际充油时间监测模块、 标准充油时间设定模块和应用层软件功能模块， 其中， 实际充油 时间监测模块用于对无级变速箱用湿式离合器的实际结合时间进行信息采集； 标准充油时间 设定模块用于设定无级变速箱用湿式离合器的目标结合时间； 应用层软件功能模块用于比较 实际充油时间监测模块采集到的无级变速箱用湿式离合器的实际结合时间与标准充油时间设 定模块内设定的无级变速箱用湿式离合器的目标结合时间， 并将比对结果发送到应用层软件 功能模块。
6、根据权利要求 5所述的一种无级变速箱用湿式离合器的自适应控制系统，其特征在于， 所述自适应控制系统还包括底层软件执行自适应功能模块， 其用于存储应用层软件功能模块 获得的比对结果， 并进行自适应计算， 以控制无级变速箱用湿式离合器油压。
7、根据权利要求 5或 6所述的一种无级变速箱用湿式离合器的自适应控制系统， 其特征 在于， 所述自适应控制系统还包括当前工况检测模块， 其用于对车辆车速及油门踏板工作状 态进行信息采集。
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