FR2431935A1 - Fuel flow regulator for vehicle speed control - has rotary potentiometer sensing pedal position, with microcomputer controlling carburettor butterfly valve via DC motor - Google Patents

Fuel flow regulator for vehicle speed control - has rotary potentiometer sensing pedal position, with microcomputer controlling carburettor butterfly valve via DC motor

Info

Publication number
FR2431935A1
FR2431935A1 FR7822212A FR7822212A FR2431935A1 FR 2431935 A1 FR2431935 A1 FR 2431935A1 FR 7822212 A FR7822212 A FR 7822212A FR 7822212 A FR7822212 A FR 7822212A FR 2431935 A1 FR2431935 A1 FR 2431935A1
Authority
FR
France
Prior art keywords
butterfly valve
carburettor
rotary potentiometer
pedal position
speed control
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.)
Granted
Application number
FR7822212A
Other languages
French (fr)
Other versions
FR2431935B1 (en
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR7822212A priority Critical patent/FR2431935A1/en
Publication of FR2431935A1 publication Critical patent/FR2431935A1/en
Application granted granted Critical
Publication of FR2431935B1 publication Critical patent/FR2431935B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B60K31/02—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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically
    • B60K31/04—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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically 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 an electrical signal which is fed into the controlling means
    • B60K31/042—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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically 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 an electrical signal which is fed into the controlling means where at least one electrical quantity is set by the vehicle operator
    • B60K31/045—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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically 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 an electrical signal 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
    • B60K31/047—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 electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically 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 an electrical signal 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 the memory being digital

Abstract

The speed control for petrol engine vehicles removes the need for a mechanical linkage between the driver's accelerator pedal and the carburettor. The control also allows speeds to be preselected(16). overall control being by a microcomputer(11) receiving signals from the gearbox(13) as a function of the gear ratio selected, from a speed selector(12) and from the accelerator pedal(1). Outputs from the computer control a DC or stepping motor(10) which itself controls the setting of the carburettor butterfly valve(14). A second output provides a speed display(15). A rotary potentiometer(2) senses the pedal position directly. The pedal works against a typically 4 kgm load for a given travel. The load consists of two helical springs(4, 5) on a common axis.
FR7822212A 1978-07-27 1978-07-27 Fuel flow regulator for vehicle speed control - has rotary potentiometer sensing pedal position, with microcomputer controlling carburettor butterfly valve via DC motor Granted FR2431935A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7822212A FR2431935A1 (en) 1978-07-27 1978-07-27 Fuel flow regulator for vehicle speed control - has rotary potentiometer sensing pedal position, with microcomputer controlling carburettor butterfly valve via DC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7822212A FR2431935A1 (en) 1978-07-27 1978-07-27 Fuel flow regulator for vehicle speed control - has rotary potentiometer sensing pedal position, with microcomputer controlling carburettor butterfly valve via DC motor

Publications (2)

Publication Number Publication Date
FR2431935A1 true FR2431935A1 (en) 1980-02-22
FR2431935B1 FR2431935B1 (en) 1982-06-25

Family

ID=9211235

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822212A Granted FR2431935A1 (en) 1978-07-27 1978-07-27 Fuel flow regulator for vehicle speed control - has rotary potentiometer sensing pedal position, with microcomputer controlling carburettor butterfly valve via DC motor

Country Status (1)

Country Link
FR (1) FR2431935A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021935A1 (en) * 1979-06-29 1981-01-07 Regie Nationale Des Usines Renault Vehicle-speed regulating device
EP0051004A2 (en) * 1980-10-27 1982-05-05 Allied Corporation Automatic speed control system for a heavy vehicle
WO1987006200A1 (en) * 1986-04-19 1987-10-22 Robert Bosch Gmbh Travelling speed adjusting device
EP0169693A3 (en) * 1984-07-27 1987-12-16 Ae Plc Automatic speed control systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356007A1 (en) * 1976-06-24 1978-01-20 Henry Jancelin Georges Electronic control for IC engine - has throttle moved by servomotor controlled by circuit responding to various engine parameters
DE2701567A1 (en) * 1977-01-15 1978-07-20 Bosch Gmbh Robert SPEED CONTROL DEVICE FOR VEHICLES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356007A1 (en) * 1976-06-24 1978-01-20 Henry Jancelin Georges Electronic control for IC engine - has throttle moved by servomotor controlled by circuit responding to various engine parameters
DE2701567A1 (en) * 1977-01-15 1978-07-20 Bosch Gmbh Robert SPEED CONTROL DEVICE FOR VEHICLES

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV39/78 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021935A1 (en) * 1979-06-29 1981-01-07 Regie Nationale Des Usines Renault Vehicle-speed regulating device
EP0051004A2 (en) * 1980-10-27 1982-05-05 Allied Corporation Automatic speed control system for a heavy vehicle
EP0051004A3 (en) * 1980-10-27 1985-01-09 The Bendix Corporation Automatic speed control system for a heavy vehicle
EP0169693A3 (en) * 1984-07-27 1987-12-16 Ae Plc Automatic speed control systems
US4737913A (en) * 1984-07-27 1988-04-12 Ae Plc Automatic speed control systems
WO1987006200A1 (en) * 1986-04-19 1987-10-22 Robert Bosch Gmbh Travelling speed adjusting device

Also Published As

Publication number Publication date
FR2431935B1 (en) 1982-06-25

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Legal Events

Date Code Title Description
ST Notification of lapse