Abstract: A system is described that can include a first database, a simulator, and a second database. The first database can store data indicating operation of at least one module within a computing device of an autonomous vehicle. The simulator can receive the stored data from the first database. The simulator can generate, based on the received data, a simulation of the operation of the at least one module. The simulator can identify at least one portion of the simulation that indicates a deviation between the collected data and the simulated operation of the autonomous vehicle. The simulator can analyze the at least one portion of the simulation to generate metrics for the at least one portion of the simulation. The metrics can be used to avoid another deviation between the collected data and the simulated operation of the autonomous vehicle. The second database can store the metrics.
Abstract: A system for inspecting vehicle pull of a vehicle includes: a sensor monitoring device that collects information for vehicle pull inspection from a sensor installed in the vehicle; a travel path measurement device that measures a travel path of the vehicle in a vehicle pull measurement section; and a vehicle pull analysis device that determines whether the vehicle passes the vehicle pull inspection, based on the sensing information collected from the sensor monitoring device and travel path measurement information collected from the travel path measurement device.
May 27, 2020
Date of Patent:
January 17, 2023
HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
Abstract: A variety of methods and arrangements for reducing noise, vibration and harshness (NVH) in a skip fire engine control system are described. In one aspect, a firing sequence is used to operate the engine in a skip fire manner. A smoothing torque is determined that is applied to a powertrain by an energy storage/release device. The smoothing torque is arranged to at least partially cancel out variation in torque generated by the skip fire firing sequence. Various methods, powertrain controllers, arrangements and computer software related to the above operations are also described.
October 20, 2020
Date of Patent:
January 17, 2023
Tula Technology, Inc.
Mark A. Wilcutts, Xi Luo, Anastasios Arvanitis
Abstract: A vehicle includes a main drive unit, a sub drive unit, and a control unit. The control unit includes a driving force distribution ratio setting unit and is configured to control the main drive unit and the sub drive unit. A drive mode of the main drive unit includes an electric power drive mode and an engine drive mode. The driving force distribution ratio setting unit is configured to set the driving force distribution ratio based on a vehicle speed, a required driving force, and the drive mode. When the drive mode is the engine drive mode, the driving force distribution ratio setting unit is configured to set the driving force distribution ratio so that a distribution ratio of the main driving force is 90% or more.
Abstract: Vehicle fuel volume estimation systems and methods are provided herein. An example method includes determining a fuel level percentage value for a vehicle, determining a vehicle identification number (VIN) of the vehicle, determining a fuel tank part number using the VIN, converting the fuel level percentage value into a fuel volume value based on the fuel tank part number, and transmitting a message to a recipient, the message that includes the fuel volume value.
September 30, 2020
Date of Patent:
January 10, 2023
Ford Global Technologies, LLC
Ben Bulat, Hyongju Park, Richard Gordon, Arnold Babila
Abstract: A predictive driver intention to stop (DITS) system for a vehicle having an engine includes one or more sensors configured to measure a set of operating parameters of the vehicle including at least (i) vehicle speed and (ii) vehicle deceleration rate. A controller is configured to identify no-stop braking events and complete stop braking events, and reference a generated baseline probability table indicating a probability of a driver braking to bring the vehicle to a stop, based on at least the vehicle speed and vehicle deceleration rate measured during at least one of the identified no-stop braking events and complete stop braking events. The controller is further configured to predict a DITS event based on the generated baseline probability table, and control operation of the engine based on the predicted DITS event to facilitate reducing vehicle fuel consumption and/or tailpipe emissions.
Abstract: A canister that adsorbs and desorbs fuel vapor generated in a fuel tank of a vehicle includes a housing and at least one expansion inhibitor. The housing is in a form of a cylinder configured to be filled with activated carbon. The housing includes a filled portion which is an area in the housing filled with the activated carbon; an unfilled portion which is an area in the housing not filled with the activated carbon; a boundary portion that defines a boundary between the filled portion and the unfilled portion; and a center portion which is situated at the axial center of the filled portion. The at least one expansion inhibitor inhibits an expansion of the boundary portion in an outward direction from being greater than an expansion of the center portion in the outward direction.
Abstract: Methods and systems for determining pressure changes across at least two fuel vapor storage canisters are described. The methods and systems may include determining the pressure changes via a sole pressure sensor. In one example, fuel vapor canister bypass passages are provided to determine pressure values at a plurality of positions within an evaporative emissions system.
Abstract: Time required by a crankshaft to rotate 30° CA from a compression top dead center is defined as time T30. A CPU calculates a rotation fluctuation amount ?T30 related to a cylinder subject to determination of a misfire by subtracting a value related to a cylinder in which a compression top dead center occurred immediately before the cylinder subject to the determination from a value related to the subject to the determination. The rotation fluctuation amount ?T30 that corresponds to a cylinder in which a combustion operation is stopped is used as a reference value ?T30ref. When a combustion operation is performed, it is determined that there is a misfire if the absolute value of the difference between the rotation fluctuation amount ?T30 and the reference value ?T30ref is less than or equal to a determination value ?th.
Abstract: An inductor includes a body, a coil disposed inside the body, and first and second external electrodes disposed on one surface of the body to respectively be connected to both ends of the coil. A recess portion is disposed in a region between the first and second external electrodes on the one surface of the body.
Abstract: A high-pressure pump includes a pressurizing chamber forming portion, a suction passage forming portion, a seat member, a valve member, a cylindrical member, a needle, a movable core, a biasing member, a fixed core, and a coil including a winding portion. The coil generates an attractive force between the fixed core and the movable core when the winding portion is energized. The coil includes an outer cylindrical surface and multiple inner cylindrical surfaces that have different diameters. The multiple inner cylindrical surfaces are arranged in order of increasing diameter in a direction toward a pressurizing chamber. The movable core has an end surface that faces the fixed core, and the end surface of the movable core is located between a center, in an axial direction, of a smallest diameter one of the plurality of inner cylindrical surfaces and a center, in an axial direction, of the outer cylindrical surface.
Abstract: An electronic battery tester or battery charger for testing or charging a storage battery including electrical connectors configured to electrically couple to a terminals of the storage battery. Circuitry couples to the electrical connectors and is configured to test or charge the storage battery. An input signal is received related to a battery which is suitable for use with the vehicle.
November 26, 2019
Date of Patent:
November 29, 2022
MIDTRONICS, INC., INTERSTATE BATTERY SYSTEM INTERNATIONAL, INC.
Andrew John Salo, III, Paul Lacroix, Brian Paul Madeley, Clifford Evyn Sewing
Abstract: An internal combustion engine system includes an internal combustion engine, a controller, and an increased brake load event communicator. The internal combustion engine includes a first cylinder and a first cylinder deactivation prevention mechanism. The first cylinder is configured to be selectively activated and deactivated. The first cylinder deactivation prevention mechanism is configured to selectively prevent the first cylinder from being deactivated. The controller is communicable with the first cylinder deactivation prevention mechanism. The controller includes an increased brake load event detection module that is configured to selectively control the first cylinder deactivation prevention mechanism to prevent the first cylinder from being deactivated. The increased brake load event communicator is communicable with the controller.
Abstract: An engine device includes: an engine; and a control device that executes a return rich control that controls the engine so that an air-fuel ratio becomes rich over a predetermined period after the engine returns from the fuel cut. When the engine is intermittently stopped during the execution of the return rich control, the return rich control is executed for a period shorter than the predetermined period after the engine is restarted. Thus, when the engine is intermittently stopped during the execution of the return rich control and the engine is restarted thereafter, it is possible to suppress a total period of the return rich control from becoming long. As a result, it is possible to suppress an increase in the amount of hydrocarbons in the exhaust gas and suppress deterioration of emissions.
Abstract: An operation/maintenance management method of an integrated system including a plurality of components or devices includes selecting an index and a period for evaluating the integrated system, acquiring prediction information for input information for use in computation of the index, creating a future prediction scenario by combining the input information, computing an evaluation index related to the scenario, and comparing and displaying evaluation index computation results related to a plurality of scenarios.
Abstract: The invention relates to a method for controlling an internal combustion engine system (2), wherein the internal combustion engine system (2) is provided with an air intake duct (3), an exhaust gas duct (4) and an exhaust gas recirculation (EGR) system (5), wherein the EGR system (5) comprises an EGR conduit (6) that fluidly connects the exhaust duct (4) and the intake duct (3), and wherein a gas feeding device (7) is arranged in the EGR conduit (6), said gas feeding device (7) being configured to feed exhaust gas from the exhaust duct (4) to the intake duct (3) during operation of the engine system (2). The method is characterized in that it comprises the step of: detecting a risk of freezing of condensed water in the EGR conduit (6), and, in case such a risk is detected and in case the gas feeding device (7) is not in operation, operating the gas feeding device (7).
Abstract: The disclosure includes embodiments for providing value-based sensor data suppression in a cooperative perception message transmission by an ego vehicle. A method includes ascertaining, by a processor of the ego vehicle, a mounting height of a first sensor of the ego vehicle. The method includes calculating a value of sensor data recorded by the first sensor based on the mounting height. The method includes determining a satisfaction state of a threshold based on the value. The method includes determining to transmit the cooperative perception message without the sensor data based on the satisfaction date of the threshold so that value-based sensor data suppression is achieved. The sensor data is suppressed because it is not included in a payload of the cooperative perception message. The suppression is value-based because the sensor data is suppressed responsive to the threshold for value not being satisfied.
Abstract: Disclosed is a reluctor plate controller that detects vacuum and pressures in the engine which are used to create digital motor control signals for controlling a reluctor plate actuator using a digital stepper motor, servo motor or a voice-coil actuator. The system can be programmed to create various desired responses that function to create better efficiency of an internal combustion engine, less pollution and/or greater engine output.
Abstract: A throttle operating device includes a fixing member, a throttle lever, the throttle lever, a magnet which is configured to rotate in response to a rotational operation of the throttle lever, and a detection sensor. A drive source of the vehicle is configured to be controlled based on the rotational operation angle of the throttle lever detected by the detection sensor. A magnetic shielding unit is disposed in the fixing member and configured to cover a periphery of the magnet and the detection sensor to shield magnetism from the outside.
Abstract: A control system for a hybrid vehicle configured to suppress a temperature rise in a transmission while achieving a required driving force without modifying a cooling system. If a temperature in the transmission is lower than a threshold level during propulsion in a hybrid mode, a controller operates an engine at an optimally fuel efficient point. If the temperature in the transmission system is equal to or higher than the threshold level during propulsion in a hybrid mode, the controller shifts the operating point of the engine to the point at which the heat generation in the transmission system can be suppressed.