...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8186329 | Method for controlling a spark-ignition direct-injection internal combustion engine at low loads A spark-ignition direct-injection internal combustion engine is controlled at low loads through split fuel injections and spark discharges including one injection and spark during a negative valve overlap period and another injection and spark during a compression p... | 05/29/2012 |
| 8136505 | Method for controlling spark for particulate filter regenerating A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine spark is controlled such that soot held by a particulate filter may be oxidized even during low engine loads. ... | 03/20/2012 |
| 7644698 | Non-equilibrium plasma discharge type ignition device An ignition device performs spark ignition to a fuel mixture in a combustion chamber (13) of an internal combustion engine (100, 101) by using a spark plug (50). The spark plug (50) includes a first electrode (51), a second electro... | 01/12/2010 |
| 7387108 | Ignition timing control system and method for internal combustion engine, and engine control unit An ignition timing control system for an internal combustion engine, which is capable of reducing the capacity of a memory that stores data used in controlling ignition timing, thereby reducing manufacturing costs. An ignition timing control system that controls ign... | 06/17/2008 |
| 7377258 | Electronic control unit and method for controlling an ignition timing of an internal-combustion engine An ignition timing value of the internal-combustion engine is calculated by using correction terms including a first correction term that is calculated based on a controlled variable without reflecting a desired value and a second correction term that is calculated ... | 05/27/2008 |
| 7263976 | Method for controlling an internal combustion engine A method is proposed for controlling an internal combustion engine having a crankshaft, in which from the angular pulses of a sensor a pulse time is formed that is a measure for the rotation of the crankshaft of the internal combustion engine per time unit. At a pre... | 09/04/2007 |
| 7218999 | Target value processing unit, temperature controller, control process implementing system, process controlling method, target value processing program, and recording medium A target value processing unit, includes: an input section to which a target value signal showing a target value of a control process is inputted; a target value shaping unit shaping the target value signal inputted to the input section, into a signal form which is ... | 05/15/2007 |
| 7103425 | Method of regulating a target system using a frequency comparison of feedback and reference pulse trains A method of regulating a target system generates a plurality of digital signals which define a reference pulse train with a frequency dependent upon a reference signal. A target system to be regulated (such as a transport speed of a paper transport assembly in a pri... | 09/05/2006 |
| 7027907 | Sequence scheduling control for a fuel injected engine An electronic control unit for an internal combustion engine having a fuel injection system and an ignition system including: timing determination means (2) for determining timing sequences for injection events of the fuel injection system and ignition events... | 04/11/2006 |
| 6997171 | Ignition apparatus for an internal combustion engine An ignition apparatus for an internal combustion engine is capable of avoiding mis-ignition even if subject to external disturbances when a fail signal is transmitted through a common signal line on which an ignition signal can also be transmitted. An igniter is con... | 02/14/2006 |
| 6948475 | Optimized combustion control of an internal combustion engine equipped with exhaust gas recirculation An EGR equipped internal combustion engine is controlled to maximize the beneficial effects and minimize the detrimental effects of EGR on engine operation. Specifically, at least one parameter indicative of the O2 concentration in the intake mixture and/... | 09/27/2005 |
| 6575148 | Humidity compensation system for an internal combustion engine A humidity compensation system for an internal combustion engine includes a humidity sensor sensing relative humidity of intake air, a temperature sensor sensing intake air temperature, a pressure sensor sensing intake air pressure and a control circuit c... | 06/10/2003 |
| 6491024 | System and method for cold start control of internal combustion engines Systems and methods for controlling an internal combustion engine during and shortly after starting include controlling combustion burn location via ignition timing to improve engine stability while reducing feedgas emissions. Open or closed loop control ... | 12/10/2002 |
| 6098592 | Process and device for controlling an internal combustion engine A method and an arrangement for controlling an internal combustion engine are suggested wherein a pregiven number of cylinders are shut off for reducing consumption and for reducing toxic substances in predetermined operating conditions. To maintain the t... | 08/08/2000 |
| 5909723 | Apparatus and a method for controlling the ignition timing of a cylinder-injection internal combustion engine An apparatus for controlling an ignition timing of a cylinder-injection gasoline engine includes an electronic control unit (ECU) for controlling the operation of an ignition coil. The ECU advances the ignition timing in accordance with the throttle openi... | 06/08/1999 |
| 5713332 | Method for controlling processes in a motor vehicle A method for controlling processes in a motor vehicle is intended, for example, for open-loop/closed-loop control of combustion processes, transmission switching processes or braking processes. An engine characteristics map is formed by operating quantiti... | 02/03/1998 |
| 5337717 | Timing control for an engine having a capacitor discharge ignition system An apparatus (8) is provided for controlling ignition in an engine having a ignition system (10), an engine cylinder sensor (48), and a piston disposed in the cylinder and being movable to a top dead center (TDC) position. The cylinder sensor (48) produce... | 08/16/1994 |
| 5331934 | Spark timing control system for a vehicle-driving internal combustion engine A spark timing control system includes an engine state detecting device for detecting a state of an internal combustion engine. A vehicle vibration detecting device serves to detect a vibration of a vehicle in a longitudinal direction with respect to the ... | 07/26/1994 |
| 5209203 | Method and apparatus for controlling the torque of an engine The torque of an internal combustion engine is controlled during acceleration by monitoring differences between engine and wheel speed in order to provide a measure of phase differences in the event of the engine torque oscillating. The difference between... | 05/11/1993 |
| 5097809 | Engine control system and method for changing acceleration response characteristic The present specification discloses an engine control system for controlling the acceleration response characteristics of a vehicle. The engine control system of the present invention operates generated torque of the engine by at least one of measured par... | 03/24/1992 |
| 4928652 | Engine control system for suppressing car body vibration An engine control system for suppressing vibration of a car body, primarily at acceleration thereof, by varying engine output torque. The system for suppression of the car body vibration takes into consideration car vibration detection delay time created ... | 05/29/1990 |
| 4915076 | Internal combustion engine output torque control system An output torque control system capable of control the internal combustion engine output torque in fast response to an engine load change. The ignition timing is controlled in a manner to reduce the difference between the actual torque and the demand torq... | 04/10/1990 |
| 4913123 | Ignition timing system with feedback correction Control of spark timing of an ignition system for an internal combustion engine uses a feedback correction signal which is a function of back EMF generated in the primary winding of an ignition coil in response to current change in the secondary winding o... | 04/03/1990 |
| 4838227 | Method of preventing vibration noise in change-speed gearboxes, in particular of motor vehicles In a method of preventing vibration noise in change-speed gearboxes, in particular of motor vehicles, with an electronic control of the ignition and the fuel measuring control of the internal combustion engine which is variable timewise as a function of e... | 06/13/1989 |
| 4787354 | Ignition control system for internal combustion engines with simplified crankshaft sensing and improved coil charging An electronic ignition system is disclosed for controlling as a function of at least one selected engine parameter the ignition or spark instants of an internal combustion engine having at least one cylinder with a piston and a rotatable crankshaft couple... | 11/29/1988 |
| 4762105 | Control system for an extrinsic-ignition internal combustion engine responsive to an engine load signal provided to dual control units A first control unit of a multiple function control system for a motor vehicle engine controls a function, such as fuel injection, for which it is desirable to provide an engine load signal measured by the amount of air drawn or forced into the engine per... | 08/09/1988 |
| 4732125 | Internal combustion engine output torque control system An output torque control system capable of control the internal combustion engine output torque in fast response to an engine load change. The ignition timing is controlled in a manner to reduce the difference between the actual torque and the demand torq... | 03/22/1988 |
| 4658787 | Method and apparatus for engine control A method and apparatus for controlling an internal combustion engine. The amount of fuel delivered to the engine is controlled in direct proportion to the rate of air flow introduced into an engine cylinder. The timing of ignition of the engine in control... | 04/21/1987 |
| 4494509 | High resolution electronic ignition control system An electronic ignition system is disclosed for controlling as a function of a selected engine parameter the ignition instant of an internal combustion engine having at least one cylinder and a piston disposed therein and coupled to a rotatable crankshaft ... | 01/22/1985 |
| 4442814 | Spark timing control system A spark timing control system for reducing engine noise in an internal combustion engine utilizing a sensor for detector for detecting engine vibration, a filtering device receiving the output of the sensor and passing frequency components within a range ... | 04/17/1984 |
| 4421086 | Ignition timing control system for an engine Ignition timing is changed within a predetermined range at a slow frequency and the fluctuations in vibrations of the engine block at that slow frequency are detected. By monitoring the phase of the vibrations with the phase of the slow frequency, whether... | 12/20/1983 |
| 4301778 | Electronic ignition device An electronic ignition device for use with an internal combustion engine is coupled between an ignition coil switch and a magnetic pick-up. The pick-up produces a cyclical signal A which is integrated and applied to a first comparator, the other input of ... | 11/24/1981 |
| 4158350 | Apparatus for system control, especially ignition timing of internal combustion engines The controlled variable of a system, in particular the timing of an internal combustion engine, is changed on the basis of a set point signal by a closed control loop which alters the relative settings of the breaker points and the distributor shaft, for ... | 06/19/1979 |
| 3982512 | Device for automatically adjusting the spark timing in an electronic ignition system for an explosion engine In an electronic system for an explosion engine, a device for automatically adjusting the spark timing, wherein a follower is kept into contact with a three-dimensional cam having a surface shaped; with lifts representing the desired timing angle of the s... | 09/28/1976 |