Patent classifications
B60W30/18054
Apparatus and method for controlling braking of autonomous vehicle
A method for controlling braking of an autonomous vehicle includes: recognizing, by a driving situation recognizer, a vehicle stop situation based on environment information around the vehicle; generating, by a deceleration profile generator, a n.sup.th-order polynomial-based deceleration profile having a plurality of inflection points (n being a natural number equal to or greater than three) when the vehicle stop situation is recognized; correcting, by a corrector, the n.sup.th-order polynomial-based deceleration profile by setting at least one of a response time of a decelerator, a mass of the vehicle during driving or a deceleration performance of a brake to a control variable; and executing, by a controller, braking of the vehicle based on the corrected n.sup.th-order polynomial-based deceleration profile.
SYSTEMS AND METHODS FOR VEHICLE HILL CONTROL
Methods and systems are provided for a vehicle hill control. An example of a method may include during a vehicle stopped condition, operating with a clutch of a transmission engaged to mechanically lock the transmission, the transmission having a plurality of power inputs including receiving input from an electric machine and a prime mover; releasing at least one of the clutch or a service brake, and while releasing, concurrently adjusting an output magnitude of the electric machine responsive to speed control to control to a zero vehicle speed. In some examples, the method may further include learning a torque output of the electric machine required to maintain the zero vehicle speed upon fully releasing the clutch or service brake. In an example, the method may include estimating a road grade based on the learned torque output.
SYSTEMS AND METHODS FOR TORQUE OUTPUT CONTROL
Methods and systems are provided for a vehicle. In one example, a method for the vehicle includes adjusting an output torque of an electric machine to produce a desired vehicle speed and direction of propulsion while operating an auxiliary load powered via the transmission. The output torque may be adjusted while disengaging clutches of a transmission or a service brake to mechanically unlock an output shaft of the transmission. The first electric machine may be operated in a speed control to learn an amount to torque to hold the vehicle speed at zero and the amount of learned torque may be superimposed with an amount of requested torque upon vehicle launch.
Stopped vehicle traffic resumption alert
Apparatus and methods are disclosed for a stopped vehicle traffic resumption alert. An example disclosed vehicle includes a collision detection unit and a traffic monitor. The example collision detection unit detects an object in front of the vehicle. The example traffic monitor, when a transmission of the vehicle is in drive and a speed of the vehicle is zero, tracks a gaze of a driver with a camera. Additionally, in response to detecting the object transition from being stationary to moving, and the gaze of the driver not being forward, the traffic monitor provides an alert to the driver.
CONTROL APPARATUS FOR POWER TRANSMISSION SYSTEM
An engagement operation of a dog clutch is carried out while an engagement operation of a second clutch is being carried out, that is, during a situation that an uplock is hard to occur because of a phase shift generated between meshing counterpart members of the dog clutch. Thus, the dog clutch is easily engaged, and it is possible to facilitate preparation for transmission of power through a first power transmission path. If the dog clutch is not engaged, the second clutch is engaged and a second power transmission path is established, so it is possible to start moving a vehicle by transmitting power through the second power transmission path. Thus, when the dog clutch is in a non-engaged state at the time of an N-to-D shift during a stop of the vehicle, it is possible to ensure the startability of the vehicle.
METHOD AND DEVICE FOR MEASURING A SLOPE ANGLE OF A VEHICLE
A method for measuring a slope angle of a vehicle includes, by a controller: determining whether or not a speed of the vehicle is 0 based on a speed signal received from a vehicle speed sensor of the vehicle; measuring an extremal value measured first, an extremal value measured second, and an extremal value measured third among extremal values of an output signal of an acceleration sensor detecting a signal corresponding to the slope angle of the vehicle when the speed of the vehicle is 0; verifying whether or not the measured three extremal values satisfy conditions of the extremal values based on reference conditions of each of the extremal values; estimating a steady state value of the output signal of the acceleration sensor, based on the extremal values measured first and second among the verified three extremal values and a dynamic characteristic parameter of the vehicle or based on the verified three extremal values; and converting the steady state value into the slope angle of the vehicle. The output signal of the acceleration sensor has a damped free vibration waveform.
Hybrid vehicle, control method for hybrid vehicle, and controller for hybrid vehicle
A hybrid vehicle includes an internal combustion engine, a rotating electric machine, an electric storage device, a power supply device, and a controller. The controller executes switching control to switch from a first electric power supply to a second electric power supply by starting the internal combustion engine. The first electric power supply is the supply of electric power from the electric storage device to the electric device. The second electric power supply is the supply of electric power from the rotating electric machine to the electric device. The controller controls the power supply device and the internal combustion engine such that the internal combustion engine is started with the first electric power supply being continued during the switching control.
METHOD AND SYSTEM FOR DECELERATING A VEHICLE
The present invention relates to a method for decelerating a vehicle comprising an electrical machine being arranged to provide a controllable torque to at least one drive wheel, said vehicle including driver controllable means for actively requesting a torque for propelling the vehicle. The method includes, when a driver request for a propelling torque is reduced at least to a first extent: applying a first brake torque by means of said electrical machine, by means of said first brake torque, decelerate said vehicle to a stationary state, and by means of said electrical machine, when said vehicle has been decelerated to said stationary state, continue applying a torque by means of said electrical machine to keep said vehicle in said stationary state.
Information provision device, loading work assistance system, and information provision method
A loading work assistance system includes a loading-progress-degree calculation unit that calculates a degree of progress of loading work performed on a transport vehicle located in a construction site by a loading vehicle, a determination unit that determines whether or not the degree of progress is equal to or more than a degree-of-progress determination threshold value, and a transport vehicle starting instruction unit that instructs the transport vehicle standing by to be started in a case where the degree of progress is equal to or more than the degree-of-progress determination threshold value.
METHOD AND APPARATUS FOR OPERATING A VEHICLE
A method for operating a vehicle, the vehicle being guided in fully automated fashion, and if an error is detected during the fully automated guidance, a safe state being selected from a plurality of safe states as a function of one parameter, the vehicle being guided in fully automated fashion into the selected safe state. Also described is an apparatus for operating a vehicle, as well as to a computer program.