518 results about "Engine management" patented technology

A vehicle control system has a plurality of subsystem controllers including an engine management system 28, a transmission controller 30, a steering controller 48, a brakes controller 62 and a suspension controller 82. These subsystem controllers are each operable in a plurality of subsystem modes, and are all connected to a vehicle mode controller 98 which controls the modes of operation of each of the subsystem controllers so as to provide a number of driving modes for the vehicle. Each of the modes corresponds to a particular driving condition or set of driving conditions, and in each mode each of the functions is set to the function in mode most appropriate to those conditions.

A system and method for managing a functional unit in a system using a data movement engine. An exemplary system may comprise a CPU coupled to a memory controller. The memory controller may include or couple to a data movement engine (DME). The memory controller may in turn couple to a system memory or other device which includes at least one functional unit. The DME may operate to transfer data to / from the system memory and / or the functional unit, as described herein. In one embodiment, the DME may also include multiple DME channels or multiple DME contexts. The DME may operate to direct the functional unit to perform operations on data in the system memory. For example, the DME may read source data from the system memory, the DME may then write the source data to the functional unit, the functional unit may operate on the data to produce modified data, the DME may then read the modified data from the functional unit, and the DME may then write the modified data to a destination in the system memory. Thus the DME may direct the functional unit to perform an operation on data in system memory using four data movement operations. The DME may also perform various other data movement operations in the computer system, e.g., data movement operations that are not involved with operation of the functional unit.

A system, apparatus, and method are directed to managing an alert to a subscriber based on a change of content at an RSS content source (RCS). A content collector identifies changes in content from various RCSs. In one embodiment, the RCS may notify the content collector of a change in content. In another embodiment, a crawler is used to identify an RCS with changed content based, in part, on a subscriber's request. Information about the RCS with changed content is provided to at least one of a plurality of matching engines using a load-balancing mechanism. Each of the matching engines manages a store that identifies subscribers that have requested an alert from a particular RCS. The matching engines further determine when the subscriber was last notified of a change in content from that RCS so that the subscriber is not notified multiple times of the same change.

A vehicle mode controller, a driving mode collecting means, and a plurality of subsystem controllers including an engine management system, a transmission controller, a steering controller, a brakes controller and a suspension controller, provide an improved system and method of operating a vehicle control system in a host vehicle in a manner suitable for a respective driving surface in a plurality of different off-road surfaces and terrains such as might be encountered when driving off-road. An improved method is provided for controlling a vehicle control system by avoiding unplanned combinations of subsystem configuration modes and minimizing the transition time when changing between subsystem configuration modes.

In a security engine management apparatus in network nodes, a security instruction and library subsystem processes every application program and utility. A policy decision subsystem determines a filtering policy, an intrusion detection policy and an access control policy. An authentication and access control subsystem blocks an unauthorized user to access to a system and allows an authorized user to access thereto according to the access control policy. A policy application subsystem applies the policies. A packet filtering subsystem receives an allowed packet and denies a disallowed packet according to the filtering policy. An intrusion analysis and audit trail subsystem analyzes the intrusion according to the intrusion detection policy. A security management subsystem manages a security engine.

A portable navigation device (PND) is disclosed comprising processing means, a graphical display, memory, map data stored in said memory, user-input means, and signal reception means for receiving one or more wireless signals by means of which the processor can determine a present location of the device and in conjunction with user input desired destination information, and perform route calculation and subsequent navigation functions, such being performed by software installed on the device. The PND is additionally provided with one or more wireless signal transceivers capable of establishing wireless communications with third party devices or systems having corresponding signal transceivers. In accordance with the invention, the software on said PND is adapted to establish a wireless communication with a third party device being a node having a corresponding wireless signal transceiver and being part of a vehicle controller area network (CAN) consisting of a plurality of nodes, each of said nodes having functionality represented by one or more signals distributed around said controller area network and received by at least said third party device, and further characterized in that said PND software includes one or more routines specific to the functionality of one or more of said nodes so as to effectively communicate with said node and utilize its functionality. Examples of third party devices include hands-free communications modules, gateway nodes, and indeed any vehicle subsystem which provides some function within the vehicle. Further examples include the stereo systems, engine management system, seat position controllers, multifunction steering wheel, dashboard and console displays, integrated navigation systems, and the like. The invention allows the PND either to interrogate the controller area network and retrieve information from one or more devices forming nodes on that network for display on the PND or improved operation thereof, or to cause control or state change of one or more of the devices forming nodes on the controller area network. Voice control of the PND is also possible in the case a voice recognition system is provided within the controller area network, and additionally, the vocal instructions issued by the PND can be caused to be replayed through the car stereo, if such is also connected to the controller area network within the vehicle.

The invention discloses a fault detecting and handling method for a hybrid vehicle and a fault detecting and handling system using the method. The technical proposal is as follows: the method adopts the intelligent control modules of the hybrid vehicle, wherein the intelligent control modules include a hybrid power control unit, an electrical control unit, a battery management system and an engine management system; the fault handling system of the hybrid power control unit is adopted as the fault handling decision center, and the fault handling units of the electrical control unit, the battery management system and the engine management system are adopted as the sub-systems; the decision center and the subsystems cooperate to detect and handle the fault. The system and the method are applicable in the control system of the vehicle (particularly hybrid vehicle) to enhance the fault detection and handling capability.

An integration platform for managing long term processes. The platform includes a runtime engine that manages the process instances and communication with the processes to provide Web services. The runtime engine includes an execution engine module and a prediction module. The prediction module generates predictions for executing processes for inbound and outbound messages and eventual process outcomes. The predictions may be utilized when requisite data is unavailable or under defined circumstances. The prediction module utilizes process history, process description and process state data to generate relevant prediction data. The prediction module may include a learning module that applies analytical algorithms to the process history and descriptions to create models for use by the prediction module.

An engine management system uses physically based models to determine the composition and mass of the fresh air / exhaust gas mixture suctioned by an internal combustion engine. The models are closely coupled to each other in a partial manner and are used to simulate the filling of the combustion chamber with the suctioned fresh air / waste gas mixture in order to simulate the flow of the mass of re-circulating exhaust gas, the behavior of the exhaust gas manifold upstream and downstream from a turbine, the storage behavior of the intake manifold, and the behavior of the intake pipe or inlet manifold whereby the fresh air / exhaust gas mixture is fed to the combustion engine from a corresponding mixing point where the suctioned fresh air is mixed with the exhaust gas re-circulated via the exhaust gas re-circulation line. As a result, a plurality of additional state variables can be determined without additional sensors.

The invention provides a four-wheel driven hybrid vehicle driving system capable of meeting the needs of a motor vehicle for torque during running in an urban area and reducing oil consumption and tail gas emission and a driving management method thereof. The driving system comprises an engine driving front wheels, an ISG motor coaxially arranged with the engine and a driving motor driving rear wheels, wherein the engine is connected with an engine management unit; the ISG motor is connected with an ISG motor control unit; the driving motor is connected with the motor control unit; and the ISG motor and the driving motor are connected with a high voltage battery through an inversion unit. The key point is that the driving system also comprises a vehicle control unit and a high voltage management unit connected with the high voltage battery. The vehicle control unit, the high voltage management unit, the engine management unit, the ISG motor control unit and the motor control unit are connected through CAN buses; and the vehicle control unit is also connected with an accelerator pedal position sensor and a vehicle speed sensor.

A system and method for controlling a compressor recirculation valve involves establishing a compressor surge flow threshold expressed in terms of a compressor corrected volume air flow rate. A torque-based engine management system computes a desired mass air flow rate in accordance with a torque request and other operating / predetermined data. The desired mass air flow rate is converted into a desired, corrected volume air flow rate, which is then compared to the compressor surge flow threshold. The controller is configured to open the valve when the desired corrected volume air flow rate is less than the compressor surge flow threshold. A hysteresis function is implemented by providing a surge flow hysteresis threshold that is offset from and greater than the initial compressor surge flow threshold. The controller is configured to close the recirculation valve when the desired corrected volume air flow rate becomes greater than the surge flow hysteresis threshold.

Disclosed is a method and device for concurrently performing a plurality of data manipulation operations on data being transferred via a Direct Memory Access (DMA) channel managed by a DMA controller / engine. A Control Data Block (CDB) that controls where the data is retrieved from, delivered to, and how the plurality of data manipulation operations are performed may be fetched by the DMA controller. A CDB processor operating within the DMA controller may read the CDB and set up the data reads, data manipulation operations, and data writes in accord with the contents of the CDB. Data may be provided from one or more sources and data / modified data may be delivered to one or more destinations. While data is being channeled through the DMA controller, the DMA controller may concurrently perform a plurality of data manipulation operations on the data, such as, but not limited to: hashing, HMAC, fill pattern, LFSR, EEDP check, EEDP generation, XOR, encryption, and decryption. The data modification engines that perform the data manipulation operations may be implemented on the DMA controller such that the use of memory during data manipulation operations uses local RAM so as to avoid a need to access external memory during data manipulation operations.

The invention discloses a hybrid electric vehicle power assembly durability testing frame and a testing method. A dynamometer is connected with an engine and a tooth ring through an ISG motor which is electrically connected with an inverter; a rotation speed sensor which is arranged at the external side of the tooth ring is connected with an instrument controller; a frame control system respectively emits test control signals to a hybrid electric control system, an engine management system and a dynamometer; the hybrid electric control system receives external signals and initiates the requirements of starting or stopping and torque to the engine management system and the motor control system according to a self-control strategy. The frame control system (PUMA) controls the operation of the dynamometer by a pre-arranged speed curve and a torque curve, thus leading the engine to run under the working conditions defined in advance. The distribution of motor torque and engine torque and the auxiliary driving torque of the motor are controlled by the hybrid electric control system according to the rotation speed of the engine and the torque requirement.

A vehicle mode controller, a driving mode collecting means, and a plurality of subsystem controllers including an engine management system, a transmission controller, a steering controller, a brakes controller and a suspension controller, provide an improved system and method of operating a vehicle control system in a host vehicle in a manner suitable for a respective driving surface in a plurality of different off-road surfaces and terrains such as might be encountered when driving off-road. An improved method is provided for controlling a vehicle control system by avoiding unplanned combinations of subsystem configuration modes and minimizing the transition time when changing between subsystem configuration modes.

Accelerated heating of automotive exhaust system components is effected by controlling the application of supplemental electrical loads to the vehicle electrical system thereby increasing engine load and increasing exhaust heat. Alternative strategies are disclosed for implementing the invention through control of electrical and engine management system parameters.

The invention discloses a hybrid electric vehicle working mode switching process dynamic coordination control method. Accelerator pedal depth is acquired by an EMS (engine management system) to obtain required vehicle torque, and an HCU (vehicle control unit) can select a work mode under a current working condition to work according to the required vehicle torque or the actual working condition; by controlling change rate from engine throttle percentage to target throttle percentage, the engaging speed of a clutch is reasonably controlled according to speed differences of an engine and a motor, insufficient dynamic output torque of the engine is offset by the quick response ability and the characteristic of accuracy torque control of the motor, and output torques of the motor and the engine are coordinated and allocated in the mode switching process. According to the technical scheme, the torque output of a hybrid power system is controlled, so as to reduce the dynamic process of the engine; oil consumption is reduced, so as to improve the economical efficiency; great fluctuation of the required vehicle torque is not generated in the mode switching process, so as to improve vehicle riding comfort; wear of the clutch is reduced, so as to ensure power transmission smoothness.

The invention relates to an electronic all-wheel-drive system for a motor vehicle and a control method therefor. The electronic all-wheel-drive system comprises a whole vehicle system, a power control system and an ESP (Electronic Stability Program) module, wherein, the ESP module is connected with the whole vehicle system and the power control system through a whole vehicle CAN (Controller Area Network) bus in a controlling manner; the power control system comprises an engine management system (EMS), a battery management system (BMS), a rear-guard motor controller (TM), A motor control unit (MCU) and a transmission case control unit (TCU); the power control system is used for interacting with the whole vehicle system, acquiring the state information of the whole vehicle system, outputting control commands after judging and processing, and controlling the whole vehicle system to operate; the whole vehicle system comprises a rear-guard motor, a high-tension battery, an ISG (Integrated Starter Generator), an engine and a transmission case.

The invention describes a safety monitoring system and a monitoring method for the torque output by a power assembly of a hybrid vehicle. The safety monitoring system and the monitoring method can be used for preventing the entire output torque from increasing and reducing accidently to provide relatively reliable protection for every module in the hybrid system, thereby ensuring the safety performance of the hybrid system. The torque monitoring of the safety monitoring system relates to three main controllers, including a hybrid control unit, an engine management system and the hybrid safety monitoring system, and respectively monitors the real output torque of the entire vehicle, a motor and the engine; the system can monitor the entire torque in normal mode and failure mode; the monitoring in normal mode can ensure the accurate explain of the entire real output torque; while the monitoring in failure mode can limit the entire real entire output torque.

A novel rotary engine of the kind having a toroidal cylinder and a set of pistons on a rotating circular piston assembly provides instantaneous adjustment of the displacement volume of the engine by varying the intake and expansion stroke length on the circular path of the pistons through the opening and closing of valves into the engine cylinder under the control of an engine management system responsive to the speed / load conditions of the engine and the throttle position.

An electronically controlled engine management system for a multi-cylinder engine unnoticeably disables and enables various cylinder groups to preserve fuel economy. The engine management system enables the operator to enjoy high torque represented from a multi-cylinder engine and to maintain good fuel economy.

An automotive urea solution monitoring device is deployed in conjunction with the urea tank of a selective catalytic reduction vehicle. An RF signal of a constant frequency may be generated across a resonant circuit, which may be comprised of an inductor and a PCB trace capacitor, or the like. Electromagnetic radiation is propagated into the automotive urea solution in the urea tank. The conductivity and dielectric properties of the liquid change the impedance of the discrete / trace capacitor and or the discrete / trace inductor. These changes are proportional to ammonia content, temperature, and / or level of the automotive urea solution in the urea tank and are preferably detected by a microcontroller, or the like, and then transmitted to a selective catalytic reduction vehicle engine management system, or the like.

An engine management and fuel delivery system allows an internal combustion engine to operate on liquid fuel such as gasoline, ethanol or a blend thereof, or compressed natural gas (CNG). A first set of fuel injectors is configured to deliver liquid fuel to the cylinders. A second set of fuel injectors is configured to deliver natural gas to the cylinders. An electronic controller is configured to generate fuel injection signals for one of the sets of injectors. An injector selector is configured to direct such fuel injection signals to either the first set of fuel injectors or the second set of fuel injectors based on a fuel type command. The fuel type command is indicative of a desired fuel type selected from either liquid fuel or CNG fuel. The fuel type command is synchronized in accordance with an engine crankshaft position signal in order to coordinate the switchover, for each one of the fuel injection signals, one by one, as each fuel injection event is completed.

Described is a system and method for searching multiple disparate search engines. More particularly, a search system provides search engine manager that operates to provide a standard interface with which one or more search engines may be queried through a search client. The search system being extensible, allows for the addition of search engines beyond the time of the initial construction of the search system. Each search engine, being wrapped around a COM (component object model) object, first registers with the search system through the wrapper, the wrapper providing communication between the search engine manager and the search engine. When initiated by a client, a query is transmitted to the search engines in series, the search engines execute the query in parallel, and the results are returned asynchronously to the client.

A method and apparatus for monitoring driver fatigue in a vehicle having a steering control includes connecting a sensor with respect to the steering control and a controller with respect to the sensor. A steering input count signal and / or steering wheel rotation signal is provided from the sensor to the controller and an alarm is activated when the steering input count signal drops below a minimum level and / or the steering wheel rotation signal exceeds a maximum level. The alarm may trigger physical responses within the vehicle including audible, visual, engine management and / or similar responses.

Te invention provides a driving method of a drive-by-wire driving system and the drive-by-wire driving system, and relates to the technical field of automatic driving. A corresponding controller is arranged between an accelerator pedal position sensor and an engine management system in advance, and the controller can be used for checking the accelerator pedal position sensor and / or an upper-layercontrol instruction of an automatic driving upper-layer controller, so that when the accelerator pedal position sensor and / or the upper-layer control instruction are / is abnormal, an automatic drivingmode is switched to an artificial driving mode in time, the safety of automatic driving is guaranteed, and further the technical problem that in the prior art, safety of automatic driving is low due to the fact that fault detection cannot be carried out on the upper-layer control instruction of the automatic driving upper-layer controller and / or the accelerator pedal position sensor of a vehicle is solved.

The invention discloses a vehicle fuel evaporation system leakage diagnosis device and a diagnosis method, and belongs to the technical field of fuel tank detection. The diagnosis device is used for accurately diagnosing if a vehicle fuel evaporation system generates leakage, wherein the vehicle fuel evaporation system comprises a fuel tank, a carton tank and an engine. The leakage diagnosis device comprises an oxygen sensor, a carton tank desorption valve, an evaporation system leakage detecting module and an engine management system. The engine management system is used for controlling opening and closing of the carbon tank desorption valve and the vacuum pump and receiving air-fuel ratio signals and pressure signals. The air-fuel ratio signals of the fuel evaporation system are directly monitored through the oxygen sensor, and are used for correcting pressure signal curves; and after the influence on the pressure by the fuel evaporation is removed, the pressure signal curves are compared with a reference pressure signal curve to accurately diagnose if the fuel evaporation system generates leakage so as to prevent wrong report of the leakage fault of the fuel evaporation system caused by the fuel evaporation.