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31. 发明专利

AT318406B 未知
公开(公告)号：AT318406B
公开(公告)日：1974-10-25
申请号：AT533572
申请日：1972-06-21
申请人： KNORR BREMSE GMBH
IPC分类号： F15B9/08 , F16H61/30 , B60K19/10

32. 发明专利

DE1750114B2 未知
公开(公告)号：DE1750114B2
公开(公告)日：1974-06-12
申请号：DE1750114
申请日：1968-03-30
申请人： ARDIE-WERK GMBH, 8500 NUERNBERG
发明人： SIEBERS, GUNTER, 8500 NUERNBERG , PRENZEL, KARL, 8541 NEU-KATZWANG
IPC分类号： F16H61/02 , F16H61/28 , F16H63/30 , B60K19/10
摘要： 1,233,620. Variable speed control. ARDIEWERK G.m.b.H. 28 March, 1969 [30 March, 1968], No. 16254/69. Heading F2D. A variable-speed gear control comprises an hydraulic pump 13 and motor 9 connected by a control unit 19 having a large flow valve 33, 34 operated by fluid pressure from a small flow solenoid valve 39, 40 controlled by signals from an electrical unit 20. The unit 20 may receive signals from transducers 21 reacting to engine speed and vehicle speed, to manual pushbuttons 22, 23 and switches 44, 45 indicating gear ratio. The motor 9 has two pistons 8, 10 and a stop 12, piston 8 having different effective areas on each side. The hydraulic circuit may include an accumulator 16 and a relief valve 17. Lines 47, 48, 49 may lead to further control units.

33. 发明专利

SE366941B 未知
公开(公告)号：SE366941B
公开(公告)日：1974-05-13
申请号：SE47472
申请日：1972-01-17
申请人： VEHLCULES IND ET D EQUIPMENTS
发明人： DESNOS J
IPC分类号： F16H63/20 , B60K19/10 , F16H5/04

34. 发明专利

GB1331649A POWER TRANSMISSION MECHANISM 未知
公开(公告)号：GB1331649A
公开(公告)日：1973-09-26
申请号：GB5681870
申请日：1970-11-30
申请人： FORD MOTOR CO
IPC分类号： F16H61/02 , F16H61/00 , F16H61/04 , F16H61/10 , F16H5/42 , B60K19/10
摘要： 1331649 Variable ratio gearing FORD MOTOR CO Ltd 30 Nov 1970 [15 Dec 1969] 56818/70 Heading F2D A variable ratio gearing (e.g. a Simpson gear train) controlled by fluid pressure clutches 42,80 and brakes 68, 78 controlled by an electronic module via shift valves 96, 98, 100, which module also controls the open/closed time ratio of a pulse valve 214 in an orifice in a signal line 220, 224 (e.g. with restrictions 210, 212) between one end of a regulator valve 86 and a line 84 controlled by the valve 86 and supplying the clutches 42, 80 and brakes 68, 78. The module, Fig. 2, may be fed with electrical signals of vehicle speed, engine throttle opening, manually selected operating range, and hydraulic pressure in line 84.

35. 发明专利

SE353865B 未知
公开(公告)号：SE353865B
公开(公告)日：1973-02-19
申请号：SE889370
申请日：1970-06-26
申请人： BOSCH GMBH ROBERT
发明人： ESPENSCHIED H , ROTHFUSS G , WILL G
IPC分类号： F16H61/00 , F16H63/02 , F16H61/02 , F16H63/12 , B60K19/10
摘要： A planetary hydraulic transmission is shifted between different stages by hydraulic operating means which receive pressure fluid whose pressure is adjusted by pressure regulating means which respond to control signals transmitted by an electronic control apparatus. The control signals represent a desired drive torque determined by the electronic control apparatus from signals received from means sensing various operational conditions of the drive motor of a car driven by the drive motor through the transmission. Since the regulated pressure is proportional to the drive torque, load peaks are prevented during shifting of the transmission.

36. 发明专利

DE1680299A1 未知
公开(公告)号：DE1680299A1
公开(公告)日：1972-02-03
申请号：DER0047954
申请日：1968-02-06
申请人： PEUGEOT , RENAULT
IPC分类号： B60W10/06 , F16H59/10 , F16H61/00 , F16H61/02 , F16H63/02 , F16H63/30 , G05G5/08 , B60K19/10
摘要： 1,206,991. Change-speed control. REGIE NATIONALE DES USINES RENAULT, and AUTOMOBILES PEUGEOT. 1 Feb., 1968 [8 Feb., 1967], No. 5128/68. Heading F2D. The electronic components of a control circuit for an automatic transmission, e.g. a three-speed transmission, are enclosed in a casing 6 together with a switch coupled to the manual control 11, the casing being mounted on a flange 7 of the gear-box 1. The control circuit may be of the type described in Specification 1,151,226 and the components, e.g. transistor 55, Fig. 4, are mounted on parallel plates 50, 57 assembled on rods 33 in the casing. Journalled in the base of the casing is a shaft 43 coupled to the shaft 8 of the manual control and carrying at its inner end a rotor 41 having peripheral notches 40 co-operating with spring-loaded locating balls 39 carried by a ring 34 located on the rods 33. The rotor locates the control 11 in six positions, viz., first gear hold, automatic first and second gear, and the usual A, N, R, P positions, the control circuit being modified appropriately as the rotor moves, by wiper contacts 48, 49 carried thereby and engaging segmental contacts printed on the surface of plate 50. In the first two positions referred to, both or one of a pair of transistors controlling the first and second gear relays are by-passed by the switch.

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