公开(公告)号：US20230331092A1

公开(公告)日：2023-10-19

申请号：US18213334

申请日：2023-06-23

Applicant: DENSO CORPORATION

Inventor： Haibo LIU ,  Keisuke KAWAI ,  Akira SAKAMOTO ,  Tatsuya TAKAGI ,  Shigeru KAMIO

IPC: B60L7/18

CPC classification number: B60L7/18 ,  B60L2240/423 ,  B60L2260/22

Abstract: A control device for a vehicle includes an operation controller that controls operations of a rotating electric machine mounted to the vehicle, a first torque detector that detects a traveling torque which is a braking/driving torque to be output from the rotating electric machine when the vehicle is traveling, a second torque detector that detects a standstill torque which is a braking/driving torque to be output from the rotating electric machine upon the vehicle coming to a stop, and a waveform setter that sets a stop waveform which is a waveform indicating a time variation in the braking/driving torque output from the rotating electric machine from the traveling torque to the standstill torque. The operation controller performs a stop process that is a process to bring the vehicle to a stop while changing the braking/driving torque output from the rotating electric machine in accordance with the stop waveform.

公开(公告)号：US20240383336A1

公开(公告)日：2024-11-21

申请号：US18665076

申请日：2024-05-15

Applicant: DENSO CORPORATION

Inventor： Shigeru KAMIO ,  Akihiro TAKAHASHI ,  Haibo LIU

IPC: B60L3/00

Abstract: A vehicle control device includes a step drive over control section that performs a step drive over control for a vehicle to drive over a step, a protection control section that performs a protection control to protect a rotating electric machine that drives the vehicle by suppressing the rotating electric machine from overheating, a temperature acquisition section that acquires the temperature of the rotating electric machine, and an execution deferment section that defers an execution of the protection control until a predetermined period has elapsed if the temperature of the rotating electrical machine becomes equal to or higher than a first threshold value at which the protection control should be executed while the vehicle is performing the step drive over control.

公开(公告)号：US20240123834A1

公开(公告)日：2024-04-18

申请号：US18541414

申请日：2023-12-15

Applicant: DENSO CORPORATION

Inventor： Haibo LIU ,  Keisuke Kawai ,  Akira Sakamoto ,  Shigeru Kamio ,  Tatsuya Takagi

IPC: B60L7/26

CPC classification number: B60L7/26 ,  B60L2240/12 ,  B60L2240/423

Abstract: A control device includes a switching control unit, an information acquisition unit, and a difference acquisition unit. The switching control unit performs switching control that increases braking torque of the braking device while decreasing braking torque of the rotating electrical machine, when a vehicle is decelerated. The information acquisition unit acquires information on a state of the vehicle. The difference acquisition unit acquires a braking torque difference indicating a difference between braking torque required for keeping a stopped state of the vehicle and braking torque of the braking device, when the vehicle is stopped. After the information acquisition unit detects the stopped state of the vehicle, the switching control unit corrects output torque of the rotating electrical machine based on the braking torque difference.

公开(公告)号：US20230365002A1

公开(公告)日：2023-11-16

申请号：US18224177

申请日：2023-07-20

Applicant: DENSO CORPORATION

Inventor： Haibo LIU ,  Keisuke KAWAI ,  Akira SAKAMOTO ,  Tatsuya TAKAGI ,  Shigeru KAMIO

IPC: B60L15/20

CPC classification number: B60L15/20

Abstract: A control apparatus includes an operation control unit; a first torque command value setting unit that sets a required torque command value; a second torque command value setting unit that sets a vehicle-stop torque command value; and a waveform setting unit that sets a torque waveform. The operation control unit controls the output torque of the rotary electric machine along the torque waveform when changing the output torque of the rotary electric machine. The waveform setting unit utilizes a first torque waveform and subsequently utilizes a second torque waveform as the torque waveform, the first torque waveform being capable of attenuating a vibration of the vehicle in a pitch direction, the second torque waveform being capable of suppressing a vibration in a power transmission member provided in a power transmission system for transmitting a torque of the rotary is electric machine to wheels.

公开(公告)号：US20240351448A1

公开(公告)日：2024-10-24

申请号：US18761380

申请日：2024-07-02

Applicant: DENSO CORPORATION

Inventor： Shigeru KAMIO ,  Haibo LIU ,  Keisuke KAWAI

IPC: B60L15/20 ,  B60L7/18

CPC classification number: B60L15/2009 ,  B60L7/18 ,  B60L2240/12 ,  B60L2240/423

Abstract: The control system has a motion control unit and a stopping failsafe control unit. The motion control unit executes a first torque control when a traveling speed of the mobile object exceeds a predetermined speed and executes a second torque control when the traveling speed of the mobile object is below the predetermined speed. The second torque control is a control to change the output torque of the motor from the instructed torque command value to the stop torque command value along the torque waveform progressively. The stopping failsafe control unit determines whether an abnormality has occurred in the motor based on a comparison between an output torque of the motor when the second torque control is executed and a predetermined abnormality determination value and executes a first failsafe control of the motor when it is determined that the motor is abnormal.

公开(公告)号：US20240239331A1

公开(公告)日：2024-07-18

申请号：US18599795

申请日：2024-03-08

Applicant: DENSO CORPORATION

Inventor： Shigeru KAMIO ,  Haibo LIU ,  Keisuke KAWAI ,  Tatsuya TAKAGI ,  Sadahiro AKAMA ,  Harumi HORIHATA ,  Masaru KUBOTA ,  Youichi KUROYANAGI

IPC: B60W30/045 ,  B60W10/08 ,  B60W10/18 ,  B60W30/18 ,  B60W30/188

CPC classification number: B60W30/045 ,  B60W10/08 ,  B60W10/18 ,  B60W30/18036 ,  B60W30/18109 ,  B60W30/188 ,  B60W2510/20 ,  B60W2520/14 ,  B60W2520/28 ,  B60W2520/30 ,  B60W2710/083 ,  B60W2710/18 ,  B60W2710/20 ,  B60W2720/14 ,  B60W2720/28 ,  B60W2720/30

Abstract: A mobile object includes: a first braking/driving torque application unit that applies first braking/driving torque to a right driving wheel; a second braking/driving torque application unit that applies second braking/driving torque to a left driving wheel; a right driven wheel and a left driven wheel each of which is constituted of a caster wheel; and a control unit that controls the first braking/driving torque application unit and the second braking/driving torque application unit. Moreover, the control unit is configured to perform turning, advancing/reversing and braking of the mobile object by controlling the first braking/driving torque and the second braking/driving torque or by controlling rotational speed of the right driving wheel and rotational speed of the left driving wheel.

公开(公告)号：US20240239208A1

公开(公告)日：2024-07-18

申请号：US18620236

申请日：2024-03-28

Applicant: DENSO CORPORATION

Inventor： Shigeru KAMIO ,  Haibo LIU ,  Keisuke KAWAI ,  Tatsuya TAKAGI ,  Sadahiro AKAMA ,  Harumi HORIHATA ,  Masaru KUBOTA ,  Youichi KUROYANAGI

IPC: B60L15/20 ,  B60K1/02

CPC classification number: B60L15/2036 ,  B60K1/02 ,  B60L2240/22 ,  B60L2240/461 ,  B60L2240/647

Abstract: This vehicle comprises a first dynamo-electric machine that imparts torque to a first drive wheel, a second dynamo-electric machine that applies torque to a second drive wheel, a rotation speed sensor that acquires a first rotation speed of the first drive wheel, a rotation speed sensor that acquires a second rotation speed of the second drive wheel, and a control device. The control device includes a basic setting unit that sets a basic rotation speed, a differential setting unit that sets a differential rotation speed, and an action control unit that controls the operation of the first dynamo-electric machine and the second dynamo-electric machine so that an average value of the first rotation speed and the second rotation speed becomes the basic rotation speed, and a difference between the first rotation speed and the second rotation speed reaches the differential rotation speed.