Patent classifications
B60W2050/0042
VEHICLE TRAVEL CONTROL DEVICE
A vehicle travel control device executes trajectory following control to make the vehicle follow a target trajectory. A delay time represents control delay of the trajectory following control. A delay compensation time is at least a part of the delay time. The trajectory following control includes: displacement estimation processing that estimates a displacement of the vehicle in the delay compensation time; and delay compensation processing that corrects a deviation between the vehicle and the target trajectory based on the estimated displacement to compensate the control delay. The displacement estimation processing is effective in an effective period and ineffective in an ineffective period. When the ineffective period is included in the delay time of the trajectory following control, the displacement estimation processing is executed in a temporary mode by using sensor-detected information in the effective period without using the sensor-detected information in the ineffective period.
Hybrid vehicle and method of controlling engine start
A method of controlling a hybrid vehicle for reducing path loss of energy when recovered energy at the time of gear shifting is transmitted to a hybrid start generator includes steps of determining a currently required torque and a predicted acceleration at a near-future time, determining a predicted speed at the near-future time based on a current speed and the predicted acceleration, determining when it is determined that one of engine start and shift conditions is satisfied at a current time based on at least one of the required torque and the current speed, whether the remaining one of the engine start shift conditions is satisfied at the near-future time, and controlling an event corresponding to the satisfied condition at the current time is delayed or an event corresponding to the satisfied condition at the near-future time is advanced when the remaining one condition is satisfied.
CONTROL DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE
The controller forms a control device for a vehicle with which torque generated in an engine and a motor generator is transmissible to a continuously variable transmission in accordance with a driving force request from a driver. The controller includes an engine controller forming a motor control unit adapted to control an output of the motor generator in accordance with the driving force request, and a transmission controller forming a transmission capacity control unit adapted to control a transmitted torque capacity of the continuously variable transmission, and, in a case where motor assistance is performed and when stability of the transmitted torque capacity of the continuously variable transmission is detected, performs the motor assistance.
METHOD AND ARRANGEMENT FOR CONTINOUS CURVE SPEED ADJUSTMENT FOR A ROAD VEHICLE
Described herein is a method and arrangement of curve speed adjustment for a road vehicle (1). Obtained is data on: current ego velocity (v.sub.E), distance (d) and curvature (r) of an upcoming road segment, represented by a set of control points (P.sub.n, P.sub.n+1, etc.) to be negotiated; road property of a road comprising the road segment; environmental properties; and driver properties. The obtained data is continuously streamed to a data processing arrangement (12) arranged to perform a translation to target velocities (v.sub.road, n, v.sub.road, n+1, etc.) for the respective control points (P.sub.n, P.sub.n+1, etc.) and, for each respective control point (P.sub.n, P.sub.n+1, etc.), a translation from target velocity (v.sub.road, n, v.sub.road, n+1, etc.) for that control point (P.sub.n, P.sub.n+1, etc.) and distance (d.sub.n, d.sub.n+1, etc.) to that control point (P.sub.n, P.sub.n+1, etc.) and obtained current ego velocity (v.sub.E), to a target acceleration (a.sub.n, a.sub.n+1, etc.) to reach that control point (P.sub.n, P.sub.n+1, etc.) at its target velocity (v.sub.road, n, v.sub.road, n+1, etc.). The resulting target accelerations (a.sub.n, a.sub.n+1, etc.) are continuously streamed to a control unit (14) of the road vehicle (1) to adjust the road vehicle (1) acceleration to reach each respective control point (P.sub.n, P.sub.n+1, etc.) at its target velocity (v.sub.road, n, v.sub.road, n+1, etc.).
ACTIVE SAFETY CONTROL SYSTEM
Systems and methods are disclosed for determining, and displaying, the regulatory compliance status of a motorized vehicle, a driver of a motorized vehicle, or a non-vehicle machine. An authorized agent, such as a law enforcement officer, can perform a remotely-initiated safe stop of a motorized vehicle to prevent a high-speed chase. A system management center can receive, store, and transmit regulatory compliance records indicating the regulatory compliance status of drivers, motorized vehicles, and non-vehicle machines. A motorized vehicle can detect, and report, a driver tail-gating the motorized vehicle. The regulatory compliance history of drivers, motorized vehicles, and non-vehicle machines can be queried by authorized users.
Systems and methods for low level feed forward vehicle control strategy
Systems and methods are provided for controlling an autonomous vehicle. A method includes using a lateral controller system for determining a vehicle's curvature. A longitudinal controller system is used for determining desired vehicle acceleration. The longitudinal controller system uses a control loop with respect to a velocity error and a feedforward term. Commands are generated based on the output of the lateral controller system and the longitudinal controller system.
Apparatus and method of reducing vibrations of hybrid electric vehicle
An apparatus for reducing vibrations of a two-cylinder engine for a hybrid electric vehicle includes a reference signal generator for generating a first reference signal and a first reference phase, a speed calculator for calculating a speed of the motor based on the position of the motor, a vibration extractor for extracting a first vibration signal based on the speed of the motor, a variable filter, a filter coefficient updater, a phase calculator, a phase shift compensator, a synchronization signal generator for generating a first synchronization signal synchronized with the first vibration signal based on a first reference phase transferred from the reference signal generator, the second phase difference transferred from the phase calculator and the first compensation value transferred from the phase shift compensator, an inverse phase signal generator, and a torque generator for generating a final command torque based on the first inverse phase signal.
Method for controlling hybrid vehicle and device for controlling hybrid vehicle
The control method for the hybrid vehicle includes a rotation speed control torque calculation step of, based on a rotation speed command value for the electric generator and a rotation speed detection value of the electric generator, calculating a torque command value for controlling the rotation speed of the electric generator, and an electric generator control step of controlling the electric generator according to the torque command value. The rotation speed control torque calculation step calculates, using the model matching compensator and based on a value obtained by filtering the rotation speed detection value through the low-pass filter and the rotation speed command value, a basic torque command value that makes a torque response of the electric generator coincide with a preset model response, calculates, using the disturbance observer including the transfer function composed of the inverse system of the control object model patterned after a power transmission system of the electric generator connected to the engine via the gears and a disturbance observer filter, and based on the rotation speed detection value, a disturbance torque that is input into the power transmission system, and calculates the torque command value based on the basic torque command value and the disturbance torque. The relative degree of the disturbance observer filter is set so that the relative degree of the transfer function becomes 1 or more.
Active safety control system
Systems and methods are disclosed for determining, and displaying, the regulatory compliance status of a motorized vehicle, a driver of a motorized vehicle, or a non-vehicle machine. An authorized agent, such as a law enforcement officer, can perform a remotely-initiated safe stop of a motorized vehicle to prevent a high-speed chase. A system management center can receive, store, and transmit regulatory compliance records indicating the regulatory compliance status of drivers, motorized vehicles, and non-vehicle machines. A motorized vehicle can detect, and report, a driver tail-gating the motorized vehicle. The regulatory compliance history of drivers, motorized vehicles, and non-vehicle machines can be queried by authorized users.
METHOD FOR CONTROLLING HYBRID VEHICLE AND DEVICE FOR CONTROLLING HYBRID VEHICLE
The control method for the hybrid vehicle includes a rotation speed control torque calculation step of, based on a rotation speed command value for the electric generator and a rotation speed detection value of the electric generator, calculating a torque command value for controlling the rotation speed of the electric generator, and an electric generator control step of controlling the electric generator according to the torque command value. The rotation speed control torque calculation step calculates, using the model matching compensator and based on a value obtained by filtering the rotation speed detection value through the low-pass filter and the rotation speed command value, a basic torque command value that makes a torque response of the electric generator coincide with a preset model response, calculates, using the disturbance observer including the transfer function composed of the inverse system of the control object model patterned after a power transmission system of the electric generator connected to the engine via the gears and a disturbance observer filter, and based on the rotation speed detection value, a disturbance torque that is input into the power transmission system, and calculates the torque command value based on the basic torque command value and the disturbance torque. The relative degree of the disturbance observer filter is set so that the relative degree of the transfer function becomes 1 or more.