Patent classifications
F16H2059/663
Efficient automatic gear shift using computer vision
An apparatus comprising an interface and a processor. The interface may be configured to receive pixel data of an exterior environment of a vehicle. The processor may be configured to process the pixel data arranged as video frames, perform computer vision operations to detect objects in the video frames, extract characteristics about the objects detected, determine driving conditions in response to an analysis of the characteristics and generate a control signal. The control signal may be configured to perform a gear shift. The driving conditions may be used to predict a future drivetrain configuration of the vehicle. The gear shift may be performed if a comparison of the future drivetrain configuration with a current drivetrain configuration of the vehicle meets a threshold condition. The gear shift may not be performed if the comparison does not meet the threshold condition.
Gearshift control apparatus of vehicle and method thereof
A gearshift control apparatus of a vehicle includes: a sensor configured to measure a speed, a brake position sensor (BPS) value, and an accelerator position sensor (APS) value of the vehicle, and a controller configured to, in a gearshift section spaced apart by a preset distance from a speed bump located on a road on which the vehicle travels, (i) calculate a deceleration of the vehicle and a gradient of the road after the speed bump, (ii) determine a correction factor corresponding to the deceleration of the vehicle and the gradient of the road, and (iii) perform a gearshift to a shift stage corresponding to the correction factor and the speed of the vehicle.
Method for controlling a transmission of a vehicle
Methods for controlling a transmission of a vehicle are provided. Such methods include establishing a desired speed profile for the vehicle when travelling along a road segment, performing a plurality of simulations, each of a vehicle response, in the road segment, to a respective gear control action, wherein the gear control action differs from one simulation to another, wherein the simulations include an aim to keep the speed on the speed profile, or within one or more established limits of deviations from the speed profile, determining costs for the simulated vehicle responses, selecting, in dependence on the determined costs, one of the gear control actions, controlling the transmission with the selected gear control action.
Method of operating a vehicle and a vehicle
A method of operating a vehicle is provided. The vehicle includes: an engine; a throttle operator moveable by a driver; a throttle valve regulating airflow to the engine; a continuously variable transmission (CVT) operatively connected to the engine; at least one ground engaging member including at least one of: a wheel and a track; a piston operatively connected to a driving pulley of the CVT for applying a piston force to the driving pulley when actuated and thereby changing an effective diameter of the driving pulley; and a control unit for controlling actuation of the piston and the piston force. The method includes: determining a driven pulley speed of a driven pulley of the CVT; detecting an uphill stand condition indicative of the vehicle being stopped on an uphill; responsive to the detection of the uphill stand condition, controlling the piston force based on the driven pulley speed.
GEARSHIFT CONTROL APPARATUS OF VEHICLE AND METHOD THEREOF
A gearshift control apparatus of a vehicle includes: a sensor configured to measure a speed, a brake position sensor (BPS) value, and an accelerator position sensor (APS) value of the vehicle, and a controller configured to, in a gearshift section spaced apart by a preset distance from a speed bump located on a road on which the vehicle travels, (i) calculate a deceleration of the vehicle and a gradient of the road after the speed bump, (ii) determine a correction factor corresponding to the deceleration of the vehicle and the gradient of the road, and (iii) perform a gearshift to a shift stage corresponding to the correction factor and the speed of the vehicle.
Apparatus for controlling a transmission of a vehicle and a method thereof
An apparatus and a method for controlling a transmission of a vehicle include an agent that determines a gear stage of the vehicle based on driving information of the vehicle, shape information of a road, and/or operation information of a driver, and include a controller that performs a reward with respect to the determination of the agent and controls the transmission of the vehicle based on the gear stage determined by the agent.
Control device for vehicle and control method for vehicle
A controller includes a control unit configured to perform stepwise shift that upshifts a CVT in a stepped manner to accelerate a vehicle. The control unit performs a downshift control configured to downshift the continuously variable transmission in a case in which an accelerator pedal is continuously stepped on from before prohibition of the stepwise shift to after prohibition of the stepwise shift.
Apparatus for controlling engine and method thereof
An engine control apparatus and an engine control method for a vehicle are disclosed. The engine control apparatus includes: an integrated thermal management valve in which an opening degree of a plurality of valves is adjusted by rotation of a cam; a storage to store an opening degree of the integrated thermal management valve based on a road slope and a transmission gear value; and a controller that controls the opening degree of the integrated thermal management valve by using an engine revolutions per minute (RPM) and an accelerator pedal value. In particular, when the accelerator pedal value is smaller than a predetermined threshold, the controller controls the opening degree of the integrated thermal management valve based on the road slope and the transmission gear value.
Apparatus and method for controlling transmission of vehicle
An apparatus for controlling a transmission of a vehicle includes a processor configured to identify a location of a speed bump based on collected information about a specified section of a front road and determine whether the vehicle enters a section of the speed bump, and to set an oil pressure of the transmission to a first oil pressure in a normal driving section and set the oil pressure of the transmission to a second oil pressure when the vehicle enters the section of the speed bump, and a controller that controls the oil pressure of the transmission corresponding to a setting of the processor for each driving section of the vehicle.
TRANSMISSION CONTROL SYSTEMS TO ADJUST CLUTCH PRESSURE AND TORQUE BASED ON GRADE
Transmissions, control systems for transmissions, and methods of operating transmissions are disclosed herein. A transmission includes an input shaft, an output shaft, one or more clutches, and a control system. The input shaft is configured to receive rotational power supplied by a drive unit. The output shaft is coupled to the input shaft and configured to provide rotational power supplied to the input shaft to a load. The one or more clutches are coupled between the input shaft and the output shaft to selectively transmit rotational power between the input shaft and the output shaft in one or more operating modes of the transmission. Each of the one or more clutches is selectively engageable in response to one or more fluid pressures applied thereto. The control system is configured to control operation of the one or more clutches to select the one or more operating modes of the transmission.