GB1386961A - Speed-responsive systems - Google Patents

Speed-responsive systems

Info

Publication number
GB1386961A
GB1386961A GB364071A GB364071A GB1386961A GB 1386961 A GB1386961 A GB 1386961A GB 364071 A GB364071 A GB 364071A GB 364071 A GB364071 A GB 364071A GB 1386961 A GB1386961 A GB 1386961A
Authority
GB
United Kingdom
Prior art keywords
throttle
speed
valve
torque
response
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
GB364071A
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.)
Associated Engineering Ltd
Original Assignee
Associated Engineering Ltd
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 Associated Engineering Ltd filed Critical Associated Engineering Ltd
Priority to GB364071A priority Critical patent/GB1386961A/en
Priority to DE19722203907 priority patent/DE2203907A1/en
Priority to IT1244172A priority patent/IT949393B/en
Priority to FR7203204A priority patent/FR2124324B1/fr
Publication of GB1386961A publication Critical patent/GB1386961A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/002—Electric control of rotation speed controlling air supply
    • F02D31/006—Electric control of rotation speed controlling air supply for maximum speed control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/06—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including fluid pressure actuated servomechanism in which the vehicle velocity affecting element is actuated by fluid pressure
    • B60K31/10—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including fluid pressure actuated servomechanism in which the vehicle velocity affecting element is actuated by fluid pressure and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of a pressure which is fed into the controlling means
    • B60K31/102—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including fluid pressure actuated servomechanism in which the vehicle velocity affecting element is actuated by fluid pressure and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of a pressure which is fed into the controlling means where at least one electrical quantity is set by the vehicle operator
    • B60K31/105—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including fluid pressure actuated servomechanism in which the vehicle velocity affecting element is actuated by fluid pressure and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of a pressure which is fed into the controlling means where at least one electrical quantity is set by the vehicle operator in a memory, e.g. a capacitor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
    • G01P1/103—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds by comparing the value of the measured signal with one or several reference values

Abstract

1386961 Automatic control of speed ASSOCIATED ENG Ltd 25 Jan 1972 [1 Feb 1971] 3640/71 Headings G3P and G3R A speed responsive system for a power unit 11 driving a shaft 12 is particularly applicable to vehicles and includes an inductive transducer 14 receiving impulses from a ferrous-toothed disc 13; a frequency-to-voltage converter 16 whose output is proportional to the frequency of the rotating disc; a comparator 21 fed from the converter 16; a differentiator 23 and reference voltage points 29, 26,; and two torque changing systems an increase system 30 and a decrease system 31 which operate a throttle actuator 32 in response to pulses from comparator 21. The reference voltage may be supplied from a potentiometer 29 or a memory circuit 26. A voltmeter 19 and a pulse counter 18 calibrated to indicate shaft speed or revolution numbers respectively or in the case of a vehicle road speed and distance respectively are included in the circuit. The memory circuit is set by closing switch 25 momentarily with the shaft running at the required speed to generate the corresponding reference voltage. The differentiator has the effect of stabilizing the system by filling in the dead band between the torque increase and decrease control modes. The control circuitry also includes feedback loops R30-D5-C10 and R31-D6-C11 from the output of the units 30, 31. The circuitry arrangements are shown in Fig. 2. Fig. 3 (not shown), illustrates the switching mechanism connecting the circuits of Fig. 1 to the power supply and controlling the modes of operation of the regulator. This mechanism is under operator control and may include drop-out contacts which respond to clutch or brake operation. Figs. 4-10 show various mechanical and hydraulic devices which respond to the output of the units 30, 31 [Figs. 4 and 5 only shown in abridgement.] These may operate the throttle directly, act as a limit device, or act to merely give a warning signal. In particular, in Fig. 4., when the system is set to Auto relay RLB operates to move valve 49 to close air bleed 50. When a torque increase voltage appears at terminal U valve 51 opens to admit manifold vacuum to chamber 48 causing bellows 45 to retact and open throttle 41. If a torque decrease voltage appears at U air is admitted via valve 53 to cause throttle to close. Fig. 5 shows an equivalent system using hydraulic circuit rather than pneumatic. In this embodiment the throttle pedal 58 is hydraulically linked to the throttle but is over-ridden by the automatic control of the fluid pressure in the system when set to Auto. The throttle opens in response to pump 59 and closes in response to relief valve 68.
GB364071A 1971-02-01 1971-02-01 Speed-responsive systems Expired GB1386961A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB364071A GB1386961A (en) 1971-02-01 1971-02-01 Speed-responsive systems
DE19722203907 DE2203907A1 (en) 1971-02-01 1972-01-28 System that responds to speed or revs
IT1244172A IT949393B (en) 1971-02-01 1972-01-28 SPEED RESPONSE REGULATION SYSTEM IN PARTICULAR FOR CAR VEHICLES
FR7203204A FR2124324B1 (en) 1971-02-01 1972-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB364071A GB1386961A (en) 1971-02-01 1971-02-01 Speed-responsive systems

Publications (1)

Publication Number Publication Date
GB1386961A true GB1386961A (en) 1975-03-12

Family

ID=9762142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB364071A Expired GB1386961A (en) 1971-02-01 1971-02-01 Speed-responsive systems

Country Status (4)

Country Link
DE (1) DE2203907A1 (en)
FR (1) FR2124324B1 (en)
GB (1) GB1386961A (en)
IT (1) IT949393B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355687A1 (en) * 1976-06-24 1978-01-20 Ass Eng Ltd ELECTRONIC SPEED REGULATION DEVICE
DE2804389A1 (en) * 1977-02-10 1978-08-17 Ass Eng Ltd VEHICLE CRUISE CONTROL SYSTEM
EP0017482A1 (en) * 1979-04-04 1980-10-15 Associated Engineering Limited Vehicle speed-control system
US4467428A (en) * 1980-08-08 1984-08-21 Associated Engineering Limited Automatic speed control systems
US4605884A (en) * 1982-04-30 1986-08-12 Canon Kabushiki Kaisha Control unit
US4631515A (en) * 1981-04-22 1986-12-23 Ae Plc Vehicle gear shift indicator

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199592B1 (en) * 1972-09-18 1976-08-20 Electricfil Sar
US4174641A (en) * 1974-11-20 1979-11-20 Electromatic Drive Corporation Power drive transmission assembly
DE2545294C2 (en) * 1975-10-09 1984-07-19 Vdo Adolf Schindling Ag, 6000 Frankfurt Device for regulating the driving speed of a motor vehicle
GB1570887A (en) * 1976-03-13 1980-07-09 Ass Eng Ltd Speed responsive systems
DE2641670C2 (en) * 1976-09-16 1985-05-15 Vdo Adolf Schindling Ag, 6000 Frankfurt Device for regulating the driving speed of a motor vehicle
FR2425956A2 (en) * 1977-11-16 1979-12-14 Renault PROCESS FOR REGULATING THE SPEED OF AN INTERNAL COMBUSTION ENGINE AND LIMITER SYSTEM BY APPLYING
JPS5925867B2 (en) * 1978-12-15 1984-06-21 株式会社日本自動車部品総合研究所 Constant speed driving control device for vehicles
JPS5660730A (en) * 1979-10-24 1981-05-25 Nissan Motor Co Ltd Voice information transmission system for automobile
EP0362969A3 (en) * 1984-02-24 1991-04-10 Tvi Europe Limited Tachograph and vehicle speed control device
GB8431455D0 (en) * 1984-12-13 1985-01-23 Ae Plc Mechanical over-ride linkages
DE3539058A1 (en) * 1985-11-04 1987-05-14 Vdo Schindling ELECTRIC ACTUATOR FOR A MOTOR VEHICLE SPEED CONTROL OR REGULATION SYSTEM
JPH01121523A (en) * 1987-11-06 1989-05-15 Mazda Motor Corp Throttle opening adjusting device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132711A (en) * 1963-05-20 1964-05-12 Gen Motors Corp Vehicle speed control
GB1118432A (en) * 1964-06-25 1968-07-03 Hawker Siddeley Dynamics Ltd Improvements in or relating to frequency-to-voltage converters
FR1550833A (en) * 1967-01-13 1968-12-20
US3563332A (en) * 1969-02-11 1971-02-16 Dana Corp Upper speed limiting device
US3575256A (en) * 1969-02-12 1971-04-20 Ford Motor Co Speed control system for an automtoive vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355687A1 (en) * 1976-06-24 1978-01-20 Ass Eng Ltd ELECTRONIC SPEED REGULATION DEVICE
DE2804389A1 (en) * 1977-02-10 1978-08-17 Ass Eng Ltd VEHICLE CRUISE CONTROL SYSTEM
EP0017482A1 (en) * 1979-04-04 1980-10-15 Associated Engineering Limited Vehicle speed-control system
US4467428A (en) * 1980-08-08 1984-08-21 Associated Engineering Limited Automatic speed control systems
US4631515A (en) * 1981-04-22 1986-12-23 Ae Plc Vehicle gear shift indicator
US4605884A (en) * 1982-04-30 1986-08-12 Canon Kabushiki Kaisha Control unit

Also Published As

Publication number Publication date
FR2124324B1 (en) 1976-07-09
FR2124324A1 (en) 1972-09-22
IT949393B (en) 1973-06-11
DE2203907A1 (en) 1972-08-17

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years