Patent classifications
B60W50/032
Method for diagnosing sticking of lubrication control valve of hybrid vehicle
In a hybrid vehicle, a hybrid type lubrication control valve which is a solenoid valve type turned on/off by electricity is used as a lubrication system component for circulating lubricating oil to a transmission and an engine clutch. A method includes measuring, by an engine clutch pressure sensor, first engine clutch engagement pressure in an off-state of the independent type lubrication control valve and second engine clutch engagement pressure in an on-state thereof; and determining, by the TCU, whether or not the independent type lubrication control valve is stuck, on the basis of a pressure difference between the first engine clutch engagement pressure and the second engine clutch engagement pressure. The method can diagnose a stuck state of the hybrid type lubrication control valve using hydraulic pressure for operating engine clutch engagement, before starting the vehicle.
METHOD FOR DYNAMIC CONTEXT-BASED DISTRIBUTION OF SOFTWARE IN A VEHICLE CONTROL SYSTEM, AND A CONTROL SYSTEM
Technologies and techniques for dynamic, context-based distribution of program codes in a control system in a vehicle. The control system includes numerous control units. The allocation of the program codes to the corresponding control units in the control system takes place using a global placement chart. The global placement chart is calculated on a computer, which may be located outside the control system. The data from the global placement chart are sent to the control system. Other aspects include an at least partially autonomous motor vehicle that has a control system for executing dynamic, context-based distribution of program codes.
METHOD FOR DYNAMIC CONTEXT-BASED DISTRIBUTION OF SOFTWARE IN A VEHICLE CONTROL SYSTEM, AND A CONTROL SYSTEM
Technologies and techniques for dynamic, context-based distribution of program codes in a control system in a vehicle. The control system includes numerous control units. The allocation of the program codes to the corresponding control units in the control system takes place using a global placement chart. The global placement chart is calculated on a computer, which may be located outside the control system. The data from the global placement chart are sent to the control system. Other aspects include an at least partially autonomous motor vehicle that has a control system for executing dynamic, context-based distribution of program codes.
Methods and systems for operating a vehicle driveline
Systems and methods for operating an engine and a driveline disconnect clutch are presented. In one example, a transient vehicle maneuver that may allow at least some air to be drawn into an oil pump pickup tube may be detected. Engine torque may be reduced and a pump output command may be increased responsive to the transient vehicle maneuver.
INTELLIGENT RECORDING OF ERRANT VEHICLE BEHAVIORS
Systems, methods and apparatus of recordation of vehicle data associated with errant vehicle behavior. For example, a vehicle includes: sensors configured to generate sensor data; control elements configured to generate control signals to be applied to the vehicle in response to user interactions with the control elements; electronic control units configured to provide status data in operations of the electronic control units; and a data storage device. The data storage device is configured to receive input data including the sensor data, the control signals and the status data, store the input data in a cyclic way in an input partition over time, generate a classification of errant behavior based on the input data and using an artificial neural network, and preserve a portion of the input data associated with the classification of errant behavior.
Accelerator pedal signal modifier safety bypass systems
A fail-safe system for accelerator pedal signal modifiers of throttle-by-wire systems for vehicles has a CPU electronically between an accelerator pedal position signal and a vehicle ECU using routines to modify the accelerator pedal position signal to the ECU. The system is monitored for faults and bypasses the modification routines to transmit the unmodified accelerator pedal position signal to the ECU when the accelerator pedal signal modifier has failed. The ECU is also monitored to detect the status of the vehicle transmission. When reverse gear is initiated, the modification routines are bypassed to transmit the unmodified accelerator pedal position signal to the ECU.
Accelerator pedal signal modifier safety bypass systems
A fail-safe system for accelerator pedal signal modifiers of throttle-by-wire systems for vehicles has a CPU electronically between an accelerator pedal position signal and a vehicle ECU using routines to modify the accelerator pedal position signal to the ECU. The system is monitored for faults and bypasses the modification routines to transmit the unmodified accelerator pedal position signal to the ECU when the accelerator pedal signal modifier has failed. The ECU is also monitored to detect the status of the vehicle transmission. When reverse gear is initiated, the modification routines are bypassed to transmit the unmodified accelerator pedal position signal to the ECU.
Method And Device For Operating An Automatically Driving Vehicle
The disclosure provides a method for operating an automatically driving vehicle, wherein application instances are executed over several computational nodes, wherein recognized faults are reacted to by switching to redundant application instances and then reconfiguring the configuration to restore specified redundancy conditions and/or segregation conditions, wherein the vehicle is transitioned to a safe state using at least one failover apparatus when at least one specified redundancy condition and/or at least one segregation condition cannot be met by the reconfiguration, and/or a specified time for reconfiguration is exceeded, and/or an unrecoverable malfunction has been recognized, wherein the at least one failover apparatus plans an emergency trajectory using a trajectory planner, wherein sensor data are detected via separate signal lines and supplied to the at least one failover apparatus, and wherein control signals are generated and transmitted via separate control lines to an actuator system of the vehicle.
FAILURE DETECTION DEVICE FOR AN EXTERNAL SENSOR AND A FAILURE DETECTION METHOD FOR AN EXTERNAL SENSOR
A failure detection device that detects a failure in a plurality of external sensors onboard a vehicle, the failure detection device comprises: an overlapping region storage unit that stores an overlapping region of detection areas of the external sensors; an environment performance storage unit that stores an environment-dependent performance of sensing of the external sensors; an environment information acquisition unit that acquires environment information about the vehicle; a recognition result comparison unit that compares recognition results of an object in the overlapping region from the external sensors; a failure likelihood computation unit that computes a failure likelihood of each external sensor based on a comparison result of the recognition results, the environment information, and the environment-dependent performance; and a failure determination unit that determines a failure in each external sensor based on the failure likelihood of each of the external sensors.
METHOD FOR DIAGNOSING STICKING OF LUBRICATION CONTROL VALVE OF HYBRID VEHICLE
In a hybrid vehicle, a hybrid type lubrication control valve which is a solenoid valve type turned on/off by electricity is used as a lubrication system component for circulating lubricating oil to a transmission and an engine clutch. A method includes measuring, by an engine clutch pressure sensor, first engine clutch engagement pressure in an off-state of the independent type lubrication control valve and second engine clutch engagement pressure in an on-state thereof; and determining, by the TCU, whether or not the independent type lubrication control valve is stuck, on the basis of a pressure difference between the first engine clutch engagement pressure and the second engine clutch engagement pressure. The method can diagnose a stuck state of the hybrid type lubrication control valve using hydraulic pressure for operating engine clutch engagement, before starting the vehicle.