GB1382439A - Combination of a motor vehicle gearbox and a retarder - Google Patents

Combination of a motor vehicle gearbox and a retarder

Info

Publication number
GB1382439A
GB1382439A GB5134272A GB5134272A GB1382439A GB 1382439 A GB1382439 A GB 1382439A GB 5134272 A GB5134272 A GB 5134272A GB 5134272 A GB5134272 A GB 5134272A GB 1382439 A GB1382439 A GB 1382439A
Authority
GB
United Kingdom
Prior art keywords
retarder
speeds
speed
brake
engine
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
GB5134272A
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1382439A publication Critical patent/GB1382439A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/08—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium
    • B60T1/087—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium in hydrodynamic, i.e. non-positive displacement, retarders
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • 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
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/10—Braking arrangements

Abstract

1382439 Hydrodynamic brakes DAIMLERBENZAG 7 Nov 1972 [11 Nov 1971] 51342/72 Heading F2E A four-speed-and-reverse automatic gearbox is followed on the driven side by a hydrodynamic retarder Pr, Sr, Fig. 1, as an additional brake system for the vehicle; the speed stages of the gearbox include freewheels which remain permanently in the effective position, even when the retarder is actuated. The engine driven shaft a, Fig. 1, drives through a torque converter W the gear train including planetary gear systems G1 to G3 for first to third speeds; Kv is a clutch for all the forward speeds, K 4 r is a clutch for the fourth forward and reverse speeds, Br is a brake for reverse speed, B 2 , B 3 are brakes for second and third speeds, and F 1 , F 2 and F 3 are freewheels associated with first, second and third speeds respectively. The retarder is switched on and off by filling and emptying its flow circuit, but extra control as below may be provided. In Fig. 2, the retarder R is controlled by a valve VR which is acted upon by the brake pedal b, the accelerator pedal g and a device d 1 which is indicative of engine speed; pedal g and device d 1 may control the retarder in such a way that the retarder is operative after delivery of torque has dropped to or below zero. In Fig. 4 (not shown), the engine speed device of Fig. 2, is replaced by a device which responds to the speed difference between the input and output shafts. Preferably, the braking force exerted by the retarder increases directly in proportion to backward movement of the accelerator pedal from a neutral position and also directly in proportion to the input-output speed difference. When the retarder is connected to the brake pedal, actuation of the retarder occurs before actuation of the main vehicle brake. The retarder may be controlled at least in part by the difference in speeds of the impeller P, Fig. 1, and turbine T of the torque converter W; or by the changeover from drive to over-run in the vehicle drive line; or by changes in the moment exerted by the engine on its mounting. Control by accelerator pedal or engine speed may be arranged to be effective only up to a specificed degree of retarder braking.
GB5134272A 1971-11-11 1972-11-07 Combination of a motor vehicle gearbox and a retarder Expired GB1382439A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712156002 DE2156002A1 (en) 1971-11-11 1971-11-11 AUTOMATIC TRANSMISSION WITH RETARDER

Publications (1)

Publication Number Publication Date
GB1382439A true GB1382439A (en) 1975-01-29

Family

ID=5824800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5134272A Expired GB1382439A (en) 1971-11-11 1972-11-07 Combination of a motor vehicle gearbox and a retarder

Country Status (3)

Country Link
DE (1) DE2156002A1 (en)
FR (1) FR2160128A5 (en)
GB (1) GB1382439A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241872A1 (en) * 1986-04-18 1987-10-21 Csepel Autogyár Control method and device for a hydrodynamic retarder for motor vehicles
CN111417549A (en) * 2017-11-30 2020-07-14 福伊特专利有限公司 Start and deceleration module

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1597100A (en) * 1976-12-24 1981-09-03 British Leyland Uk Ltd Method of and apparatus for retarding the motion of a power driven vehicle
DE2853918A1 (en) * 1978-12-14 1980-07-03 Linde Ag Safety brake for vehicle transmission - has centrifugal limiter on engine drive shaft to prevent excessive speed on overrun
DE2936969A1 (en) * 1979-09-13 1981-04-02 Daimler-Benz Ag, 7000 Stuttgart PLANETARY WHEEL CHANGE-GEARBOX WITH ONE ADDITIONAL AND ONE MAIN GEARBOX FOR VEHICLES
DE3134259C2 (en) * 1981-08-29 1985-08-01 J.M. Voith Gmbh, 7920 Heidenheim Powershift transmission with integrated retarder
DE3144902A1 (en) * 1981-11-12 1983-05-19 Voith Gmbh J M "DRIVE UNIT WITH A MANUAL GEARBOX"
CZ293363B6 (en) 1998-03-06 2004-04-14 Voith Turbo Gmbh & Co. Kg Hydrodynamic mechanical compound transmission

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2170128A (en) * 1936-05-12 1939-08-22 Parkersburg Rig & Reel Co Brake mechanism for motor vehicles
DE847705C (en) * 1939-01-31 1952-08-28 Fichtel & Sachs Ag In the wheel hub of a vehicle, especially a bicycle or motorcycle, built-in epicyclic gear with three gears
US3525317A (en) * 1968-03-07 1970-08-25 White Motor Corp Vehicle engine braking system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241872A1 (en) * 1986-04-18 1987-10-21 Csepel Autogyár Control method and device for a hydrodynamic retarder for motor vehicles
CN111417549A (en) * 2017-11-30 2020-07-14 福伊特专利有限公司 Start and deceleration module

Also Published As

Publication number Publication date
FR2160128A5 (en) 1973-06-22
DE2156002A1 (en) 1973-05-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee