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GB1373787A - Improvements realting to the control of motor vehicle change-speed gearing - Google Patents

Improvements realting to the control of motor vehicle change-speed gearing

Info

Publication number
GB1373787A
GB1373787A GB4800871A GB4800871A GB1373787A GB 1373787 A GB1373787 A GB 1373787A GB 4800871 A GB4800871 A GB 4800871A GB 4800871 A GB4800871 A GB 4800871A GB 1373787 A GB1373787 A GB 1373787A
Authority
GB
United Kingdom
Prior art keywords
capacitor
resistor
motor vehicle
signal
oct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4800871A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1373787A publication Critical patent/GB1373787A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H61/0437—Smoothing ratio shift by using electrical signals
    • 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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
    • F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0202—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 characterised by the signals used the signals being electric
    • F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
    • F16H2059/465—Detecting slip, e.g. clutch slip ratio
    • F16H2059/467—Detecting slip, e.g. clutch slip ratio of torque converter
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0202—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 characterised by the signals used the signals being electric
    • F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
    • F16H2061/0258—Proportional solenoid valve
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • 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
    • F16H61/0021—Generation or control of line pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Control Of Direct Current Motors (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

1373787 Pulse generating circuits ROBERT BOSCH GmbH 15 Oct 1971 [16 Oct 1970] 48008/71 Heading H3T [Also in Divisions F2 and G3] A motor vehicle gear changing apparatus comprises a function generator (14, Fig. 2, not shown) as shown in Fig. 6. Voltage increase and decrease are controlled respectively by the charge and discharge time of a capacitor 73 across the positive feed Ub and output terminal 86. When an increase signal from the shift circuit appears at El, the capacitor 73 charges through a field effect transistor 74, resistor 75 and switching transistor 76, triggered by the signal E1, and ground line 53. A decrease shift signal at E2 discharges the capacitor 73 through a triggered switch transistor 80, field effect transistor 79 and resistor 78. Charge and discharge are at constant current and hence would produce linear voltage change. To obtain a non- linear, and if desired, stepped voltage change at output 86, a Zener diode 84 and variable resistor 85 are arranged across a computing amplifier 83, which also decouples the load from the capacitor.
GB4800871A 1970-10-16 1971-10-15 Improvements realting to the control of motor vehicle change-speed gearing Expired GB1373787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702050918 DE2050918C3 (en) 1970-10-16 1970-10-16 Control device for step change transmissions of motor vehicles with a hydraulic torque converter

Publications (1)

Publication Number Publication Date
GB1373787A true GB1373787A (en) 1974-11-13

Family

ID=5785359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4800871A Expired GB1373787A (en) 1970-10-16 1971-10-15 Improvements realting to the control of motor vehicle change-speed gearing

Country Status (8)

Country Link
AT (1) AT322377B (en)
AU (1) AU476269B2 (en)
CH (1) CH534066A (en)
DE (1) DE2050918C3 (en)
FR (1) FR2109792A5 (en)
GB (1) GB1373787A (en)
NL (2) NL7114224A (en)
SE (1) SE372203B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287360A1 (en) * 1974-10-07 1976-05-07 Peugeot & Renault PRESSURE CONTROL DEVICE FOR AUTOMATIC MOTOR VEHICLE TRANSMISSION
DE2742031B2 (en) * 1977-09-19 1979-09-13 Robert Bosch Gmbh, 7000 Stuttgart Gear changing device for vehicle powershift transmissions
US4283970A (en) * 1979-07-02 1981-08-18 General Motors Corporation Automatic transmission line pressure control
FR2570521B1 (en) * 1984-09-18 1987-12-11 Renault REGULATION DEVICE WITH TWO PRESSURE DOMAINS
FR2570458B1 (en) * 1984-09-18 1990-03-02 Renault DEVICE AND METHODS FOR CONTROLLING A FOUR-SPEED AUTOMATIC TRANSMISSION
EP0316358B1 (en) * 1986-08-08 1990-04-11 ZF FRIEDRICHSHAFEN Aktiengesellschaft Electrohydraulic control for an automatic gear-box
DE102008000119A1 (en) * 2008-01-22 2009-07-23 Zf Friedrichshafen Ag Electrohydraulical operating device for e.g. eight-gear-automatic transmission, of vehicle, has valve slide adjusted during subjection of pressure of slide in position, in which transmission for rearward speed is used in transmission device

Also Published As

Publication number Publication date
NL7901018A (en) 1979-08-31
SE372203B (en) 1974-12-16
DE2050918A1 (en) 1972-06-08
AT322377B (en) 1975-05-26
DE2050918C3 (en) 1978-06-15
AU3465371A (en) 1973-04-19
DE2050918B2 (en) 1977-10-13
NL7114224A (en) 1972-04-18
AU476269B2 (en) 1976-09-16
CH534066A (en) 1973-02-28
FR2109792A5 (en) 1972-05-26

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee