-
公开(公告)号：US20230303060A1
公开(公告)日：2023-09-28
申请号：US18042609
申请日：2020-08-24
发明人： Takahiro KIKUCHI , Kengo FUJIWARA
CPC分类号： B60W20/15 , B60W30/20 , B60W50/00 , B60W2050/0008 , B60W2510/0638 , B60K6/46
摘要： A hybrid vehicle control method controls a hybrid vehicle. In this control method, a rotational speed command value for a power generation system is determined in accordance with a state of a drive system, a torque command value is determined for the power generation system such that the rotational speed of the power generation system reaches the rotational speed command value, a damping control is performed to suppress a characteristic vibration component generated in a connection between the engine and the power generator to calculate a final torque command value for the power generation system, and the torque command value is set as the final torque command value without performing the damping control upon determining a system resonance can occur that is caused by vibration of a component different from the characteristic vibration component.
-
公开(公告)号：US20240270086A1
公开(公告)日：2024-08-15
申请号：US18687227
申请日：2021-08-30
CPC分类号： B60L15/20 , H02P21/05 , H02P21/20 , H02P21/22 , B60L2240/423
摘要： A control method for an electric vehicle equipped with an electric motor as a driving source, the method including: setting a torque target value as a target value related to a driving torque of the electric vehicle based on vehicle information; calculating a basic feedback compensation value based on a parameter indicating a rotation state of the electric motor and a vehicle model of the electric vehicle; calculating a first feedback compensation value by multiplying the basic feedback compensation value by a first gain; calculating a second feedback compensation value by extracting a predetermined specific frequency component from the basic feedback compensation value and multiplying the specific frequency component by a second gain; calculating a torque command value by correcting the torque target value by the first feedback compensation value and the second feedback compensation value; and driving the electric motor based on the torque command value.
-
公开(公告)号：US20220379732A1
公开(公告)日：2022-12-01
申请号：US17771213
申请日：2019-10-28
摘要： A control method for an electric vehicle using a motor as a traveling drive source to decelerate by a regenerative braking force of the motor, including: obtaining an accelerator operation amount; estimating a disturbance torque acting on a vehicle body of the electric vehicle; obtaining an angular velocity of a rotating body that correlates to a rotation speed of a drive shaft which drives the electric vehicle; calculating a first torque command value based on the accelerator operation amount; setting the first torque command value to a torque command value; controlling a torque generated in the motor based on the torque command value; setting a target stop position at the time of stopping the electric vehicle; calculating a target angular velocity of the rotating body according to a distance from the electric vehicle to the target stop position; calculating a second torque command value for stopping the electric vehicle at the target stop position based on a difference between the target angular velocity and the obtained angular velocity; and converging the torque command value to the disturbance torque by setting the second torque command value to the torque command value and adjusting the braking and driving forces of the motor according to a distance to the target stop position, when the accelerator operation amount decreases or becomes zero and the electric vehicle is about to stop.
-
公开(公告)号：US20190337398A1
公开(公告)日：2019-11-07
申请号：US16317854
申请日：2016-07-29
发明人： Kengo FUJIWARA , Akira SAWADA , Sho OHNO
摘要： A vehicle control device for decelerating by the regenerative braking of a motor connected to a drive shaft of a drive wheel calculates a torque command value for suppressing a vibration component of the drive shaft by feeding back a torsional angular velocity of the drive shaft to a desired torque that determines the power of the motor and controls the operation of the motor on the basis of the torque command value. The control device estimates a dead zone section, in which the torque of the motor in the vehicle is not transmitted to the drive shaft, on the basis of the desired torque and limits the torque command value in the case where the vehicle is in the dead zone section.
-
公开(公告)号：US20220185121A1
公开(公告)日：2022-06-16
申请号：US17442998
申请日：2019-03-27
发明人： Akira SAWADA , Takashi NAKAJIMA , Kengo FUJIWARA , Shou OONO , YUI ITO
IPC分类号： B60L15/20
摘要： A control method for an electric vehicle according to the present embodiment is a control method for an electric vehicle in which an electric motor 4 is used as a traveling drive source and deceleration is performed by a regenerative braking force of the electric motor 4. The control method includes: acquiring an accelerator operation amount; acquiring a total mass M{circumflex over ( )} of the electric vehicle; estimating a disturbance torque acting on the electric vehicle; acquiring an angular velocity of a rotary body correlated with a rotation velocity of a driving shaft 8 for driving the electric vehicle; estimating a vehicle body speed of the electric vehicle by using a transmission characteristic Gp(s) from the angular velocity of the rotary body to a speed of the electric vehicle; calculating a second torque target value Tm2 (torque specified value) for the electric motor 4 based on the acquired total mass M{circumflex over ( )} of the electric vehicle; and controlling, based on the second torque target value Tm2, a torque generated in the electric motor 4. The control method further includes: converging the second torque target value Tm2 to a disturbance torque Td as an estimated vehicle body speed V decreases, when the accelerator operation amount is equal to or less than a predetermined value and the electric vehicle stops.
-
公开(公告)号：US20190299967A1
公开(公告)日：2019-10-03
申请号：US16308176
申请日：2016-06-08
发明人： Kengo FUJIWARA , Ken ITOU
摘要： 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.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.018 秒)
