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公开(公告)号：US10137784B2
公开(公告)日：2018-11-27
申请号：US14915806
申请日：2014-09-03
发明人： Keisuke Suzuki
摘要： Provided is a control device for an electric vehicle capable of stabilizing vehicle behavior when performing slip control of drive wheels. The control device for an electric vehicle according to the present invention is a control device for an electric vehicle to be used in an electric vehicle, the electric vehicle including: a motor which is connected to the drive wheels of the electric vehicle via a differential gear and a drive shaft, and which is configured to generate a braking or driving torque for each of the drive wheels; and a mechanical braking device capable of independently generating a braking force for each of the drive wheels. In this control device for an electric vehicle, when a slip ratio of each of the drive wheels is detected as being a predetermined slip ratio or more, a torque absolute value of the motor is reduced so that the slip ratio of each of the drive wheels is a target motor slip ratio, and a larger braking force is applied by the mechanical braking device to, of a right drive wheel and a left drive wheel, the drive wheel having a higher wheel speed than the drive wheel having a lower wheel speed.
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公开(公告)号：US20140288758A1
公开(公告)日：2014-09-25
申请号：US14361837
申请日：2012-12-06
发明人： Keisuke Suzuki , Toshiya Oosawa
IPC分类号： B60L15/20
CPC分类号： B60L15/2009 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2250/26 , B60L2270/145 , Y02T10/645 , Y02T10/7275
摘要： It is an object of the present invention to provide a control apparatus which can achieve a compatibility between a response characteristic of a torque which coincides an acceleration demand by a driver and a reduction effect of a gear backlash. A vehicle controller 111 includes a torque variation quantity limitation control section 202 configured to limit an increase quantity per unit time of a torque of a motor driven on a basis of a motor torque command value to correspond to an accelerator manipulated variable when an accelerator stroke sensor detects that an accelerator manipulation state is changed from a non-manipulation state to a manipulation state and the motor is switched from a braking torque to a driving torque.
摘要翻译： 本发明的目的是提供一种能够实现使驾驶员的加速需求一致的扭矩的响应特性和齿轮间隙的减小效果之间的兼容性的控制装置。 车辆控制器111包括转矩变化量限制控制部202，其被配置为当加速器行程传感器（20）和加速器行程传感器（10）对应于加速器操作量时，基于马达转矩指令值将每单位时间的驱动马达的转矩上限 检测到加速器操作状态从非操作状态改变为操作状态，并且电动机从制动转矩切换到驱动转矩。
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公开(公告)号：US11498535B2
公开(公告)日：2022-11-15
申请号：US16961560
申请日：2019-01-07
发明人： Keisuke Suzuki , Kazuya Takahashi , Satoshi Kaneko
摘要： An apparatus includes a control apparatus for an electric vehicle. The control apparatus outputs an instruction to reduce the first regenerative braking force according to the physical amount regarding the stroke of the brake pedal to the electric motor. The control apparatus also outputs an instruction to add a braking force corresponding to a third regenerative braking force, which is a regenerative braking force corresponding to an amount of the reduction in the first regenerative braking force, to the brake actuation braking force when the signal regarding the pressing of the brake pedal is input after the signal regarding the return of the pressed accelerator pedal is input.
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公开(公告)号：US11440403B2
公开(公告)日：2022-09-13
申请号：US16331775
申请日：2017-08-15
发明人： Keisuke Suzuki , Satoshi Kaneko , Kazuya Takahashi
IPC分类号： B60K1/02 , B60K23/08 , B60K17/356 , B60L15/20
摘要： Provided is a control apparatus for an electric vehicle that can set a final torque instruction value without necessitating a repetition of a calculation. A control apparatus calculates a power limit value of each motor that is used when power is supplied to a plurality of motors, based on a power limit value of a power source, and calculates a torque instruction value of each motor based on the power limit value of each motor.
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公开(公告)号：US10597041B2
公开(公告)日：2020-03-24
申请号：US15766348
申请日：2016-09-16
发明人： Keisuke Suzuki , Satoshi Kaneko
摘要： An object of the present invention is to provide a control apparatus for an electric vehicle that can prevent or reduce a shock when the vehicle starts running from a stopped state. According to one embodiment of the present invention, a first vibration damping control torque calculated by a first calculation method based on a signal of a wheel speed sensor, or a second vibration damping control torque calculated by a second calculation method based on a signal other than the signal of the wheel speed sensor is selectively output.
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公开(公告)号：US09931962B2
公开(公告)日：2018-04-03
申请号：US15021241
申请日：2014-09-10
CPC分类号： B60L15/20 , B60L3/0061 , B60L3/102 , B60L3/12 , B60L15/2045 , B60L2240/24 , B60L2240/421 , B60L2240/423 , B60L2240/461 , B60L2240/465 , B60L2250/26 , B60L2260/26 , B60L2270/145 , Y02T10/645 , Y02T10/7283
摘要： Provided are a control device for an electric vehicle and a control method for an electric vehicle capable of appropriately suppressing a vibration. In the control device for an electric vehicle according to the present invention, when a torque is controlled that is generated by a motor configured to generate a torque for braking or driving a drive wheel via a speed reduction mechanism and a drive shaft coupled to the speed reduction mechanism, the torque generated by the motor is controlled based on a rotational torque command value based on an accelerator operation or a brake operation by a driver, and a vibration suppression control torque command value for suppressing a vibration component caused by a resonance of the vehicle. Then, when a predetermined condition is satisfied, the torque generated by the motor is reduced.
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公开(公告)号：US10144293B2
公开(公告)日：2018-12-04
申请号：US15021197
申请日：2014-09-10
IPC分类号： B60L3/10 , B60L15/20 , B60W10/08 , B60L7/14 , B60L11/18 , B60W10/184 , B60W30/18 , B60T8/175 , B60T8/1763
摘要： Provided is a driving force control device capable of stabilizing a vehicle behavior when a driving torque of a drive wheel is controlled. When slip suppression control is carried out to decrease a driving torque of a drive source that is connected to the drive wheel of a vehicle via a speed reduction mechanism and a drive shaft, and is configured to generate a torque for braking or driving the drive wheel, to thereby suppress a slip state of the drive wheel, the driving torque of the drive source is controlled so that a slip ratio of the drive wheel is in an area of the slip ratio smaller than a slip ratio corresponding to a peak value of a road surface friction coefficient in a characteristic of the road surface friction coefficient with respect to the slip ratio.
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公开(公告)号：US11597283B2
公开(公告)日：2023-03-07
申请号：US16617870
申请日：2018-05-18
发明人： Keisuke Suzuki , Satoshi Kaneko
摘要： An object of the present invention is to provide a control apparatus for an electric vehicle capable of preventing the vehicle from being destabilized because a rear wheel is locked first or drivability from reducing because a front wheel is locked early. A control apparatus includes a regenerative braking force calculation portion configured to calculate a regenerative braking force to be generated on each of a front motor and a rear motor based on a request braking force requested to an electric vehicle, a power limit portion configured to reduce the regenerative braking force based on a power limit on a power source, and a frictional braking force output portion configured to output an instruction for generating a frictional braking force according to a regenerative braking force reduction amount, which is an amount of a reduction in the regenerative braking force by the power limit portion, to a brake apparatus.
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公开(公告)号：US09827873B2
公开(公告)日：2017-11-28
申请号：US14914365
申请日：2014-08-08
IPC分类号： B60W10/08 , B60L15/20 , B60R16/023 , B60L3/00 , B60L3/10 , B60L3/12 , B60L7/18 , B60L7/26 , B60W10/184 , B60W30/18 , B60W50/00
CPC分类号： B60L15/2009 , B60L3/0076 , B60L3/0084 , B60L3/102 , B60L3/106 , B60L3/12 , B60L7/18 , B60L7/26 , B60L15/20 , B60L2240/423 , B60L2240/461 , B60L2250/26 , B60L2260/44 , B60R16/023 , B60W10/08 , B60W10/184 , B60W30/18172 , B60W2050/0006 , B60W2050/0045 , B60W2050/0094 , B60W2550/148 , Y02T10/645 , Y02T10/7275 , Y02T90/16
摘要： Provided is an electric vehicle control system capable of securing good response and slip stopping property with respect to changes in a road surface condition. The system includes a vehicle controller configured to calculate a driver's demand torque command value according to a driver's accelerating or braking operation, a first communication device capable of communicating between a hydraulic controller and a motor controller, and a second communication device capable of communicating between the vehicle controller and the motor controller. The system includes a control system in which the hydraulic controller transmits a motor torque command value to the motor controller through the first communication device; the vehicle controller transmits the driver's demand torque command value to the motor controller through the second communication device; and the motor controller selects either one of the received motor torque command value and the received driver's demand torque command value as the command value.
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公开(公告)号：US11364806B2
公开(公告)日：2022-06-21
申请号：US16466574
申请日：2017-12-01
IPC分类号： B60L15/20
摘要： Provided is a control apparatus for an electric vehicle, which is capable of suppressing simultaneous slip of front and rear wheels. The control apparatus for an electric vehicle includes a control portion configured to control a front electric motor and a rear electric motor so that an achievement rate of a torque command with respect to a target torque in one motor of the front and rear electric motors is lower than the achievement rate in the other motor of the front and rear electric motors.
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