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| Number | Title | Issue Date |
| 5558051 | Valve timing control device for an internal combustion engine A valve timing control device for an internal combustion engine comprises a variable valve timing mechanism capable of varying a valve overlap period. Fuel injection can be stopped in at least one predetermined engine operating condition and an optimal va... | 09/24/1996 |
| 5515824 | Method and apparatus for controlling fuel supply shut off of an internal combustion engine The invention involves stopping the operation of an internal combustion engine, when actual vehicle deceleration is detected after a vehicle deceleration operation. Alternatively, under conditions wherein it is possible to shut off fuel supply at the time... | 05/14/1996 |
| 5517411 | Neutral attainment control system/method for controlling shifting in vehicular automated mechanical transmission systems A robust engine fueling control is provided for assuring neutral attainment in a vehicular automated mechanical transmission system (10) having a manually controlled master clutch (16). Upon sensing a requirement for a shift into transmission neutral, the... | 05/14/1996 |
| 5443558 | Engine power regulator An apparatus for regulating power produced by a motor vehicle engine is disclosed. The apparatus cooperates in association with throttling valves and engine power moderating devices. The apparatus has first detecting device for detecting the operating con... | 08/22/1995 |
| 5369586 | Method of and apparatus for controlling wheel spin In order to control wheel spin in a vehicle driven by an internal combustion engine, a spin calculator determines the amount of wheel spin and compares this with a target value. If the target value is exceeded, an engine controller reduces engine output d... | 11/29/1994 |
| 5347974 | Air-to-fuel ratio control system for internal combustion engine An air-to-fuel ratio control system optimally controls an air-to-fuel ratio of an internal combustion engine according to various engine operating conditions, and aims at assuring quick air-to-fuel ratio control and preventing erroneous operation of the e... | 09/20/1994 |
| 5337715 | Engine deceleration intake air flow reduction and fuel shut-off control In an automotive type engine having an air bypass valve controlling a portion of the air flow to the engine, decelerations are controlled in a manner to minimize or eliminate the conventional large feedback negative torque impulse to the operator usually ... | 08/16/1994 |
| 5289807 | Bypass air-flow control apparatus for an internal combustion engine A bypass air flow rate control apparatus has an idle speed control valve for continuously adjusting an air flow rate and an on-off control valve for allowing and shutting off an air flow passing therethrough. When an atmospheric pressure sensor detects th... | 03/01/1994 |
| 5231965 | Throttle signal modifying circuit An engine governor system includes an electronic governor which controls the fuel supply to an engine in response to an throttle signal supplied by a throttle potentiometer which coupled to a throttle lever. A circuit is connected between the throttle pot... | 08/03/1993 |
| 5186080 | Engine coastdown control system When the throttle of a vehicle engine is released by the vehicle operator of a vehicle having an automatic transmission, the slip of the automatic transmission is measured and the airflow of the engine is trimmed as a function of the measured slip to esta... | 02/16/1993 |
| 5146891 | System and method for controlling fuel supply to internal combustion engine according to operation of automatic transmision applicable to automotive vehicle A system and method for controlling an operation of an internal combustion engine of a vehicle having an automatic transmission in which at least one of predetermined fuel supply recovery engine revolution speed or predetermined fuel supply cut-off engine... | 09/15/1992 |
| 5146886 | System for controlling an internal combustion engine A method for controlling an internal combustion engine is proposed, in particular in conjunction with control systems for engine power, in which, in order to avoid potentiometer failures due to deposits of insulating abraded material on the potentiometer ... | 09/15/1992 |
| 5119781 | Control of engine fuel injection during transitional periods associated with deceleration fuel cut-off A method is described for controlling the injection of fuel in a direct injected, multi-cylinder internal combustion engine, to smooth transients in engine output torque associated with a deceleration fuel cut-off mode of engine operation. This is accompl... | 06/09/1992 |
| 5113820 | Method of avoiding excessive engine drag torque The disclosure describes a method of avoiding an excessive drag torque for motor vehicles. When the accelerator pedal is released, an amount of fuel is supplied to the engine which is approximately under zero-load and which is gradually reduced over time.... | 05/19/1992 |
| 5094206 | Method for controlling a crankcase scavenged two-stroke engine during deceleration fuel cut-off A method is described for increasing engine braking, when a crankcase scavenged two-stroke engine is operated in a deceleration fuel cut-off mode. In response to the detection of operating conditions indicating engine operation in the deceleration fuel cu... | 03/10/1992 |
| 5091857 | Driving force control system There is proved a driving force control system which comprises device for measuring operating state of the vehicle brake system and generating an output signal, and device for controlling a driving force upon a predetermined condition being fulfilled afte... | 02/25/1992 |
| 5060611 | Process and device for influencing the air feed in an internal-combustion engine, in particular during idling and coasting A process and a device for air proportioning during idling or overrun mode of operation in an internal-combustion engine are provided. During idling, the internal-combustion engine is regulated to a nominal speed by means of a PI controller (203, 204) and... | 10/29/1991 |
| 5031715 | Cruise-control system with fuel and throttle valve control In a cruise-control system mounted on an automobile after a cruise-control mode has been established, a microcomputer prevents the electronic fuel-injection system of the automobile from cutting off the supply of fuel to the engine. This prevents the velo... | 07/16/1991 |
| 4981122 | Fuel injection control device of an engine A fuel injection control device in which the supply of fuel into the engine cylinder is stopped at the time of deceleration, and a rich time of the air-fuel mixture is calculated when the supply of fuel is stopped. If the rich time becomes relatively long... | 01/01/1991 |
| 4964271 | Air-fuel ratio feedback control system including at least downstream-side air-fuel ratio sensor In an air-fuel ratio feedback control system including at least one air-fuel ratio sensor downstream of a catalyst converter provided in an exhaust gas passage, an actual air-fuel ratio is controlled in accordance with the output of the downstream-side ai... | 10/23/1990 |
| 4944199 | Control apparatus for a vehicle engine equipped with an automatic transmission A controller controls an engine in cooperation with an automatic transmission which is automatically locked when an operating speed of the engine is higher than a previously established transmission lockup speed. The controller includes an engine power in... | 07/31/1990 |
| 4944358 | Driving wheel slip control system for vehicles A driving wheel slip control system for a vehicle equipped with an internal combustion engine, in which a decelerating condition of the engine is detected, a slip state of the driving wheels is detected, and the torque of the driving wheels is reduced in ... | 07/31/1990 |
| 4941441 | Engine brake system of a two-cycle engine for a motor vehicle A two-stroke engine has a scavenge pump provided in an intake passage, a bypass around the scavenge pump and a fuel injector provided for injecting fuel in a cylinder of the engine. A valve is provided in the bypass so as to close the bypass. When deceler... | 07/17/1990 |
| 4923042 | Fuel supply control method for an engine with a fluid torque converter clutch A fuel supply control method for an engine having a fluid torque converter with a clutch for mechanically connecting the input and output sides of the fluid torque converter wherein the clutch is engaged and the fuel supply to the engine is stopped during... | 05/08/1990 |
| 4895116 | Safety device for motor vehicles Safety device for motor vehicles utilizes a cam-like plate and linkage to prevent accidental acceleration of a motor vehicle when disengaging the vehicle's shift lever from the park or neutral position. The apparatus employs an electrical circuit to detec... | 01/23/1990 |
| 4877101 | Constant-speed control device for a vehicle A constant-speed control device for a vehicle including a fuel cut device and a suspending device which suspends a fuel cut operation. An actuator is provided for controlling a throttle valve so that the vehicle runs at a constant speed. The fuel cut devi... | 10/31/1989 |
| 4870934 | Apparatus for controlling engine speed In a device on a motor vehicle with an internal combustion engine as the drive source and an accelerator pedal and transmission means for controlling the power of the internal combustion engine a switch activated when the accelerator pedal is actuated is ... | 10/03/1989 |
| 4870933 | Fuel control system for an automotive engine A fuel control system for providing a dashpot operation at release of an accelerator pedal of a motor vehicle. A bypass is provided around a throttle valve of an engine and an idle speed control valve is provided in the bypass, for controlling air passing... | 10/03/1989 |
| 4862367 | Automatic speed control apparatus for controlling vehicle speed at set speed An automatic speed control apparatus for controlling the running speed of a vehicle at a constant set speed includes an auxiliary intake passage providing direct communication between portions of a main intake passage upstream and downstream from a thrott... | 08/29/1989 |
| 4860211 | Air fuel ratio control apparatus An air fuel ratio control apparatus, performs fuel decrease compensation during deceleration with respect to an air fuel ratio upon detection of a returning operation of a throttle valve. To avoid variations in torque which detract from a smooth ride, fue... | 08/22/1989 |
| 4846127 | Fuel supply control system for an automotive engine An idle switch is provided to respond to release of an accelerator pedal of a motor vehicle, for producing an idle signal. A large increment of the engine speed after the production of the idle signal is detected and an engine speed increase signal is pro... | 07/11/1989 |
| 4790275 | Fuel supply cut-off control system for engine of an automotive vehicle A system for cutting off the supply of fuel to an automobile engine in a specific operating region within the deceleration region of the engine determines whether the engine transmission is manual or automatic. The system has for each of the manual transm... | 12/13/1988 |
| 4781160 | Method for operating an exhaust-gas-turbocharged, low-compression multi-cylinder diesel-cycle internal combustion engine A method of operating and exhaust-gas-turbocharged, low-compression multi-cylinder Diesel-cycle internal combustion engine that has a first cylinder group which operates over the full load range, and a second cylinder group which is cut out during startin... | 11/01/1988 |
| 4779600 | Engine An engine used for automobiles, wherein the gases are discharged from the cylinder after purification, thereby reducing the air pollution problems, and the engine secures a strengthened engine brake by utilizing the pneumatic force as a restraint on the p... | 10/25/1988 |
| 4760822 | Method for controlling the air/fuel ratio of an internal combustion engine with a fuel cut operation A method for controlling an air/fuel ratio of an internal combustion engine. The fuel supply is performed normally by a feedback control operation for controlling the air/fuel ratio of the mixture toward a target air/fuel ratio in accordance with an oxyge... | 08/02/1988 |
| 4727846 | Method of controlling fuel supply to an internal combustion engine at deceleration The fuel supply to an internal combustion engine is decreased when the engine is in an operating region wherein the intake passage pressure is lower than a first predetermined value. The first predetermined value is corrected in response to detected atmos... | 03/01/1988 |
| 4714064 | Control device for internal combustion engine The disclosure is directed to a control device for an internal combustion engine for a motor vehicle such as an automobile or the like, having a control valve disposed in a by-pass passage for opening and shutting the by-pass passage which communicates th... | 12/22/1987 |
| 4709674 | System for automatically controlling the idling speed of an internal combustion engine A system for automatically controlling the idling speed of an internal combustion engine, comprising a valve, for supplying an adjustable quantity of additional air, and means for controlling the setting of the valve as a function of the detected speed of... | 12/01/1987 |
| 4700673 | Method of controlling the operating characteristic quantities of an internal combustion engine A method for controlling the operating characteristics of an internal combustion engine is disclosed. An injection signal for metering fuel and an idling charge signal for the supply of idling air are present. Engine overrun is also recognized in this met... | 10/20/1987 |
| 4697559 | Method of controlling an air-fuel ratio for an internal combustion engine In a method of controlling an air-fuel ratio for an internal combustion engine, a control section feedback-controls an electronically controlled carburetor in response to a signal from an O2 sensor which detects the concentration of O2 | 10/06/1987 |
