• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention relates to servo-controlled vehicle gearboxes. The purpose of the invention is to increase efficiency by providing protection against mistaken gear while accelerating shift processes. The gearbox includes a main box 1 and a divider 2 gears. The main gearbox 1 has five gears engaged, namely reverse gear R and four forward speeds I-IV, as well as one neutral position. The neutral position can be on three levels of the switching mechanism, namely, the level of I and II speeds, the level of III and IV speeds, or the level of reverse gear R. The appropriate level is made
    公开号:SU1748641A3
    申请号:SU853947360
    申请日:1985-08-09
    公开日:1992-07-15
    发明作者:Клатт Альфред
    申请人:Вабко Вестингхауз , Фарцойгбремзен Гмбх (Фирма)；
    IPC主号:
    专利说明:

    Vj
    four
    00
    ABOUT
    Ј

    WITH
    TG
    Fig 1 v
    with the help of the working cylinder 3 levels on three positions, which is controlled by the valve device 4; Setting the speeds of movement of the forward and reverse gears is done by the working cylinder 5 speeds on three positions, which is controlled by another
    This invention relates to servo-controlled transmissions of a vehicle.
    The purpose of the invention is to increase efficiency by providing protection against erroneous switching while accelerating switching processes.
    FIG. 1 is a block diagram of the control of a transmission of a vehicle; Fig. 2 is a level selection chart as a function of vehicle speed.
    The gearbox includes main gearbox 1 and a splitter gear 2. The main gearbox 1 has five gears engaged, i.e. reverse gear R and four speeds 1-4 forward, as well as one neutral position, the neutral position can be on three levels of the switching mechanism, namely at the level of 1 and 2 speeds , at the level of inclusion 3 and 4 speeds, or at the level of inclusion of a backing R.
    The appropriate level is set using a three-position working cylinder 3, which is controlled by the valve device 4. The forward and reverse speeds are set by the working speed cylinder 5 by three positions, which is controlled by another valve device 6.
    To double the number of forward speeds, there is a 2-speed divider. It has a divider working cylinder 7 in two positions, controlled by a valve device 8. Cylinder 7 can be switched to position L for speeds from 1 to 4 and in position S for speeds from 5 to 8.
    The corresponding speeds 5-8 of the position of the main gearbox 1 are shown by numbers in figure 1 in brackets.
    Fittings for supplying pressurized medium to valve devices 4, 6 and 8 for controlling the working cylinders 3, 5 and 7 are not shown.
    Valve devices 4 & and 8 are made in the form of magnetic valves and control valve device 6 The gearbox also contains an electronics unit 12, which gives certain levels to individual ranges of vehicle speeds or vehicle speeds and sets these levels at neutral 2
    with electrical lines 9-11 from electronics unit 12.
    The switch 13 serves to enable the driver to operate. He has a lever
    There are three switch positions: switch up, switch down and neutral. These lever positions on line 14 are transmitted to the electronics unit. In block 12 electronics also
    data on engine speed r are entered, as well as vehicle speed. Based on the information received, block 12 determines the favorable travel and, through valve devices, provides the introduction of
    this move.
    As can be seen from Fig. 2, the position of the neutral position is not accidental, but depends on the available speed of the vehicle. If, for example, the vehicle is moving at a speed above 50 km / h in the neutral area, then the neutral position is always taken at a level of 7/8 or 3/4 speeds. In the speed range from 20 to 50 km / h, the level of 5/6 or 1/2 is chosen.
    speed. In the range from 10 to 20 km / h, the level for speeds of 3/4 or 7/8 is selected. In the range of approximately 0 to 10 km / h, a level is selected for speeds of 1/2 or 5/6.
    The splitter gear 2 is switched at the same speed thresholds as the main gearbox 1.
    Reversing can be engaged only in a narrow range near the vehicle speed equal to zero. If the reverse gear is turned off while reversing, the gearshift level of 1/2 or 5/6 is always assumed.
    As can be seen from the diagram in Fig. 2, the upward shift of the level to the neutral position is made at a higher vehicle speed than the downward shift. This hysteresis is necessary so that at a certain vehicle speed there is no continuous level switching.
    If the vehicle is moving
    from the spot, the block 12 of the electronics before the flush from the spot always puts the level for
    gear shift 1/2. When starting off, the driver moves the lever in the direction of the switch up and the electronics unit 12 will turn on 1 speed.
    In this way, the time it would take if the level were turned on to switch speeds of 3/4 would be saved.
    The level selection described is particularly beneficial and useful for a gearbox that automatically selects the right gear depending on the weight of the vehicle. If the vehicle is not loaded, a level can be chosen to switch on the speeds of 3/4 and the drive off at third speed.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The servo-controlled vehicle transmission contains
    a switch connected to a control electronics unit connected to the control units of the operating cylinder of level switching and at least one working cylinder of switching speeds, characterized in that, in order to increase efficiency by providing protection against erroneous switching while accelerating switching processes, it is equipped with an engine speed sensor and a vehicle speed sensor that are connected to a control electronics unit including an additional control unit. A memory of vehicle speeds, engine speeds and the optimum gearbox position belonging to them, the working level switching cylinder being made in three positions.
    类似技术:
    公开号 | 公开日 | 专利标题
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    CA2077096A1|1993-03-05|Vehicle Automatic Transmission Control System
    GB1409130A|1975-10-08|Arrangement for controlling gear changes in a motor vehicle gear box
    JPH04228968A|1992-08-18|Vehicle transmission
    JPS61157855A|1986-07-17|Manual speed change gear for automatic transmission
    JPS60175857A|1985-09-10|Automatic speed-change controller for car
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    JPS61192954A|1986-08-27|Automatic transmission for vehicle
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    JPH02253050A|1990-10-11|Control method of vehicular automatic transmission gear
    CA1212263A|1986-10-07|Gear shifting means
    GB2297811A|1996-08-14|Transmission control sytem moves synchroniser to neutral and engages clutch for a predetermined time
    JP2841278B2|1998-12-24|Vehicle speed change control device
    JPH01120476A|1989-05-12|Speed change controller for continuously variable transmission of vehicle
    JP3448878B2|2003-09-22|Powered vehicle transmission
    SU1065259A1|1984-01-07|System for stabilizing the speed of self-propelled machine with stepped transmission
    JP2585377Y2|1998-11-18|Automatic transmission for vehicles
    同族专利:
    公开号 | 公开日
    EP0170807A1|1986-02-12|
    DE3429531A1|1986-02-20|
    EP0170807B1|1988-01-20|
    DE3561447D1|1988-02-25|
    US4690008A|1987-09-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2719115C2|2016-02-19|2020-04-17|Ниссан Мотор Ко., Лтд.|Sliding gear uncoupling control method|US2637222A|1951-01-12|1953-05-05|Fuller Mfg Co|Shift control for auxiliary transmissions|
    US2654268A|1951-07-14|1953-10-06|Fuller Mfg Co|Shift control for auxiliary transmissions|
    DE1505535C3|1966-01-27|1978-09-21|Robert Bosch Gmbh, 7000 Stuttgart|Automatic electrical control device for a motor vehicle gear change transmission|
    US3407676A|1966-09-20|1968-10-29|Zahnradfabrik Friedrichshafen|Multiple speed gearshift control for motor vehicles|
    DE2124624A1|1971-05-18|1972-12-07|Robert Bosch Gmbh, 7000 Stuttgart|Gear shifting device|
    DE2145667A1|1971-09-13|1973-03-22|Bosch Gmbh Robert|GEAR SHIFTING DEVICE|
    US3885447A|1973-10-09|1975-05-27|Eaton Corp|Shift control|
    GB1457887A|1973-11-21|1976-12-08|Automotive Prod Co Ltd|Automatic gearboxes|
    US3945265A|1974-11-08|1976-03-23|Charles Gilbert Bell|Fluid actuated gear changing system|
    DE2536917C2|1975-08-19|1985-10-10|Zahnräderfabrik Renk AG, 8900 Augsburg|Speed-dependent electrical switching device for gearboxes|
    US4203375A|1977-08-11|1980-05-20|Caterpillar Tractor Co.|Electronic switching control for rear transmission|
    DE2752568A1|1977-11-25|1979-06-07|Daimler Benz Ag|Automatic control for group gearbox - has electronic logic for optimum gear ratio w.r.t. road speed and engine settings|
    DE2952204A1|1979-12-22|1981-06-25|Audi Nsu Auto Union Ag, 7107 Neckarsulm|Automobile automatic transmission responsive to passenger load - allows higher ratios for low chassis load for higher economy|
    US4388843A|1980-11-21|1983-06-21|Eaton Corporation|Auxiliary transmission neutral positioning and locking control and mechanism|
    SE420294B|1980-11-28|1981-09-28|Saab Scania Ab|PROCEDURE FOR PREVENTING MISCELLANEOUS VEHICLE SELECTION BY AN AUTOMATIC VEHICLE SELECTION SYSTEM IN VEHICLES|
    US4425620A|1981-01-28|1984-01-10|Steiger Tractor, Inc.|Electrical control for power shift transmission|
    DE3271527D1|1981-05-15|1986-07-10|Automotive Prod Plc|Control system for an automatic transmission|
    US4507736A|1982-02-11|1985-03-26|Wabco Fahrzeugbremsen Gmbh|Transmission gear shift control system|
    JPS644930B2|1982-04-17|1989-01-27|Diesel Kiki Co|
    JPS58214050A|1982-06-04|1983-12-13|Toyota Motor Corp|Indicating method for speed-change operation|
    JPS5940047A|1982-08-31|1984-03-05|Fuji Heavy Ind Ltd|Speed change operating mechanism of automatic transmission car|
    DE3237508A1|1982-10-09|1984-04-19|Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover|GEAR SHIFT FOR A FOREIGN ACTUATED GEARBOX|
    DE3237509A1|1982-10-09|1984-04-12|Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover|GEAR SHIFT FOR A FOREIGN ACTUATED GEARBOX|JPS63303247A|1987-05-30|1988-12-09|Diesel Kiki Co Ltd|Automatic transmission device|
    GB2207715B|1987-07-28|1991-10-09|Gaydon Techn Ltd|Vehicle transmissions|
    JPH0625593B2|1987-09-29|1994-04-06|いすゞ自動車株式会社|Transmission control device|
    GB8725981D0|1987-11-05|1987-12-09|Eaton Corp|X-y shifting mechanism|
    DE3832971C2|1988-09-29|1993-03-25|Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De|
    US4873881A|1989-01-06|1989-10-17|Eaton Corporation|Electrically actuated x-y shifting mechanism|
    US5263379A|1991-12-14|1993-11-23|Eaton Corporation|Automatic range shift arrangement|
    US5199311A|1992-01-23|1993-04-06|Eaton Corporation|Variable pressure range section actuator assembly|
    US5224392A|1992-01-23|1993-07-06|Eaton Corporation|Variable pressure range section actuator piston|
    US5199312A|1992-01-23|1993-04-06|Eaton Corporation|Range section actuator control system and method for preventing damage to range section synchronizers|
    US5199314A|1992-01-23|1993-04-06|Eaton Corporation|Synchronized splitter section protection system/method|
    US5323669A|1992-10-29|1994-06-28|Eaton Corporation|Fault tolerant method of transmission gear selection|
    US5261288A|1992-12-18|1993-11-16|Eaton Corporation|Enhanced missed shift from neutral recovery for automated or semi-automated mechanical transmission system|
    US5388476A|1993-06-15|1995-02-14|Agco Corporation|Gearshift mechanism|
    US5429559A|1993-09-22|1995-07-04|Eaton Corporation|Forced engagement logic|
    US5676017A|1995-07-27|1997-10-14|Rockwell Heavy Vehicle Systems, Inc.|Automatic range shift for multi-speed transmission|
    US5741202A|1996-05-20|1998-04-21|Meritor Heavy Vehicle Systems, Llc|Shift by wire transmission system|
    CA2250978A1|1997-10-25|1999-04-25|Bombardier Inc.|Transmission system for a straddle type vehicle|
    US5984828A|1998-03-16|1999-11-16|Meritor Heavy Vehicle Systems, Llc|Control methods for a shift by wire vehicle transmission|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19843429531|DE3429531A1|1984-08-10|1984-08-10|AUXILIARY VEHICLE TRANSMISSION|
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