6581 results about "Engine control unit" patented technology

A control unit controls a vehicle having a body to allow a user to step on, a power generator arranged to generate power that drives the body, and a first sensor and a second sensor. Each sensor preferably outputs a load value representing a load that has been applied to the body. The control unit preferably includes a processor arranged to output a command value associated with a bias of the load based on first and second load values that have been respectively detected by the first and second sensors, and a drive controller arranged to control the power generator in accordance with the command value.

A video screen enclosure is disclosed for housing a flat panel video display unit (“FPD”), comprising a housing and a front panel member joined to the housing with an airtight seal. An environmental control unit (“ECU”) within housing includes means to internally circulate air within said enclosure to maintain a temperature within a range suitable for operation of said display, and a control system to maintain the interior temperature within said enclosure within a selected range suitable for operation of said FPD. The enclosure may form a sealed unit with interior air being recirculated through said ECU, or ambient air may be circulated through the enclosure.

Method for minimizing driver perceptible drive train disturbances during take-off in a hybrid electric vehicle when maximized power is often desired is disclosed. The method includes sensing an actual state-of-charge (SOC) value of a battery in a hybrid electric vehicle and a traveling velocity of the vehicle during take-off operation. The sensed actual SOC value is compared with a SOC reference value and computing a delta SOC value as a difference therebetween. A velocity-based SOC calibration factor is looked up that corresponds to the traveling velocity of the vehicle. A combination is utilized of the delta SOC value and the SOC calibration factor as a SOC feedback engine speed control instruction to an engine controller of the hybrid electric vehicle. A driver's desired vehicular acceleration is sensed based on accelerator position. Maximum possible engine power generatable at the sensed vehicle speed is determined, as is a required power value from the power train of the vehicle to meet the driver's desired vehicular acceleration. The maximum possible engine power generatable at the sensed vehicle speed is compared with the required power value and computing a delta power train requirement value as a difference therebetween. A velocity-based and accelerator position-based power calibration factor is looked-up that corresponds to the traveling velocity of the vehicle and the accelerator position. A combination of the delta power train requirement value and the power calibration factor is utilized as a power requirement feed-forward engine speed control instruction to an engine controller of the hybrid electric vehicle.

Disclosed herein are a NFC-enabled mobile communication terminal and a method of controlling the same. The NFC-enabled mobile communication terminal is capable of performing short-range wireless communication with at least one NFC tag in reader mode. The NFC-enabled mobile communication terminal includes an NFC antenna for transmitting and receiving data recorded in the tag, an NFC controller for receiving the data the NFC antenna, a function control unit for receiving the data from the NFC controller and analyzing the data, and a terminal control unit for causing at least one function of the mobile communication terminal to be performed. The data is function control data including a command to perform the function. The function control unit extracts the command from the function control data, applies the command to the terminal control unit, and executes the command, thereby compulsorily controlling the function of the mobile communication terminal.

In various described embodiments skip fire control is used to deliver a desired engine output. A controller determines a skip fire firing fraction and (as appropriate) associated engine settings that are suitable for delivering a requested output. In one aspect, the skip fire controller is arranged to select a base firing fraction that has a repeating firing cycle length that will repeat at least a designated number of times per second at the current engine speed. Such an arrangement can be helpful in reducing the occurrence of undesirable vibrations.

A battery management system (BMS) manages a battery for a hybrid vehicle including an engine control unit and a motor generator controlled by the engine control unit and connected to a battery including at least one battery pack, each pack including a plurality of battery cells. The BMS includes a sensor and an MCU unit. The sensor detects temperature, current, and open circuit voltage (OCV) of the battery. The MCU receives the detected temperature, current, and OCV, calculates a key-off time period which is a period between a time point when a battery key-on state ends and a time point when a subsequent battery key-on state begins, calculates an OCV error range corresponding to an SOC error range detected at the key-off time point, and infers an initial SOC of the battery.

Disclosed herein are a mobile communication terminal using Near Field Communication (NFC) and a method of controlling the same. The mobile communication terminal receives data from an NFC active tag during NFC communication. The mobile communication terminal includes an NFC antenna for receiving a data signal from the active tag, an NFC controller for performing control so that a session with the active tag is set up, and receiving the data signal, a function control unit for receiving the data signal from the NFC controller and analyzing the data signal, and a terminal control unit for performing functions of the mobile communication terminal. The data signal of the active tag is a function control signal including a command to control at least one function of the mobile communication terminal. The function control unit extracts the command, applies the command to the terminal control unit, and executes the command.

Methods and systems are provided for controlling exhaust emissions by adjusting a fuel injection into an engine cylinder from a plurality of fuel injectors based on the fuel type of the injected fuel and further based on the soot load of the engine. Soot generated from direct fuel injection is reduced by decreasing an amount of direct injection into a cylinder as the engine soot load increases.

A system for an engine, comprising a cylinder, a first injection subsystem for injecting a first substance into the cylinder, a second injection subsystem for injecting a second substance into the cylinder, and an electronic engine controller configured to control a plurality of operating parameters of the engine, where the electronic engine controller is configured to cause variation of at least one of the operating parameters in response to a shortfall condition of the second injection subsystem.

The present invention introduces a congestion control mechanism for constant bit rate (CBR) multimedia data flows in cable operator IP networks. A flow drop method within a congestion control unit of the present invention chooses a subset of multimedia data flows to drop, in whole, to alleviate a congestion condition. After the congestion condition is detected and the congestion control unit begins dropping multimedia data flows, the remaining multimedia data flows are no longer degraded for the end user, as compared to conventional congestion management systems.

A system and method for enhanced combustion control in an internal combustion engine is disclosed. A fuel supply system has a fuel injector positioned to directly inject fuel into a combustion chamber, and it is capable of performing a split injection wherein a first fuel injection in each engine cycle precedes a second fuel injection that occurs during compression stroke in the same engine cycle. A spark plug produces a spark to ignite a first air/fuel mixture portion created due to the second fuel injection, initiating a first stage combustion. The first stage combustion raises temperature and pressure high enough to cause auto-ignition of a second air/fuel mixture portion surrounding the first air-fuel mixture portion, initiating a second stage combustion. An engine controller is programmed to perform control over initiation timing of the second stage combustion in response to at least one of the engine speed and load. This control is accomplished by varying at least one of a fuel injection timing of the first fuel injection, a fuel injection timing of the second fuel injection, spark timing, a proportion of fuel quantity of the second fuel injection to the total fuel injected in each engine cycle, and an EGR rate in response to at least one of engine speed and load.

The invention discloses a range extended electric vehicle control system, and relates to a whole vehicle control system. The range extended electric vehicle control system comprises an engine controlled by the conventional throttling valve, a generator which is integrally connected with a crank shaft of the engine and has functions of generating power and driving, a vehicle-mounted power battery, a whole vehicle controller, a range extender controller, a battery management system, a battery direct current sensor, an engine controller unit, a generator controller unit, a generator end direct current sensor and a permanent magnet synchronous driving motor, wherein the permanent magnet synchronous driving motor, the power battery and the generator are connected to a power line and used for driving wheels, a motor controller, a motor direct current sensor, the throttling valve and a crank shaft position sensor; the range extender controller communicates with the engine controller unit and the generator controller unit and sends a control instruction; and the range extender controller manages power generation energy and controls an auxiliary system according to a demand of a driver and a state of a range extender system. The invention also discloses a range extended electric vehicle control method. The range extended electric vehicle control system and the range extended electric vehicle control method can be used for electric automobiles.

The invention provides a USB charger, a mobile terminal using the USB charger and a charging control method of the mobile terminal. The USB charger, which is suitable for charging the mobile terminal, comprises a first logic control unit. The USB charger is suitable for realizing both-way communication with the mobile terminal through the first logic control unit. The USB charger sends a maximum output capability signal of the USB charger to the mobile terminal through the first logic control unit, receives a charging voltage request signal sent by the mobile terminal and adjusts the output voltage of the USB charger according to the charging voltage request. Two signal lines are utilized between the USB charger and the mobile terminal provided in the embodiment of the invention, and both-way synchronous communication is realized through a pulse coding and decoding protocol, so that quick and safe larger-current charging is realized, and the realization method is simple.

The invention discloses an engine cooling system and a temperature control method of cooling liquid thereof. The engine cooling system comprises a heat radiator, a water pump, a circulating water jacket, an electronic thermostat, a cooling fan, a cooling liquid temperature sensor and an engine control unit, wherein the control unit determines the cooling liquid target temperature of an engine under the current operation working condition according to acquired signals, such as engine rotating speed, load, speed, air inlet temperature, and the like and ensures that the engine works under the optimal cooling liquid temperature condition by controlling the heating time of the electronic thermostat and the high and low speed running of the cooling fan.

System and method for modifying the operation of an engine comprising an engine control unit coupled to the engine, a command module coupled to the engine control unit, wherein the command module is operable to modify operating characteristics of the engine by reconfiguring the function of the engine control unit. The engine control unit further comprises software and/or firmware, and the command module reconfigures the function of the engine control unit by altering the software and/or firmware. The command module may modify the engine operation, for example, based upon environmental conditions, topographic conditions, and/or traffic conditions.

An engine control device capable of improving engine efficiency by operating the engine in an area where fuel consumption is small (good) while allowing high responsivity of the engine to be maintained. The object can be achieved by operating to match at a point on a target torque line of a torque diagram and operating an electric motor when a matching point moves on the target torque line in a direction in which a load applied to the engine output shaft becomes large.