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公开(公告)号:US20240308354A1
公开(公告)日:2024-09-19
申请号:US18575418
申请日:2022-06-09
申请人: Hitachi Astemo, Ltd.
发明人: Naoki SHINOHARA , Keisuke SUZUKI
CPC分类号: B60L15/2009 , B60T8/172 , B60T8/58 , B60L2240/12 , B60L2240/14 , B60L2240/24 , B60L2250/26 , B60T2230/04 , B60T2250/04
摘要: In a vehicle control device, a vehicle control method, and a vehicle control system according to one embodiment of the present invention, a physical quantity relating to a speed of a vehicle and a physical quantity relating to a requested braking force required to decelerate the vehicle are acquired, and a driving force is generated by a driving device under a state in which a friction braking force is being generated when the vehicle is to be decelerated based on the physical quantity relating to the requested braking force.
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2.
公开(公告)号:US12017630B2
公开(公告)日:2024-06-25
申请号:US17439278
申请日:2020-03-11
CPC分类号: B60T8/344 , B60T7/042 , B60T8/30 , B60T13/146 , B60T13/686 , B60T2230/04
摘要: A method for reducing jolt moments during a deceleration of a vehicle by a braking system, the braking system having at least one electrically actuatable pressure supply device, hydraulic wheel brakes and a valve device. The valve device is designed to apply a pressure provided by the pressure supply device to a selectable subset of the wheel brakes. The method includes: determining a braking requirement, determining a vehicle speed, checking whether the vehicle speed is below a defined threshold value, and if the vehicle speed is below the threshold value, selecting the subset of wheel brakes and applying a pressure provided by the pressure supply device to only the subset of wheel brakes, the pressure being determined according to the selected subset of wheel brakes.
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公开(公告)号:US20230415715A1
公开(公告)日:2023-12-28
申请号:US17850601
申请日:2022-06-27
CPC分类号: B60T8/24 , B60T8/172 , B60T2210/20 , B60T2230/04
摘要: Methods, apparatus, systems, and articles of manufacture to reduce end of stop jerk are disclosed. An example vehicle includes a user interface, a brake system, and a controller to execute instructions to detect a command to engage the brake system at a command brake pressure, estimate a time until the vehicle comes to a stop, and in response to determining that the time satisfies a time threshold, engage the brake system at a delivered brake pressure less than the command brake pressure.
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4.
公开(公告)号:US20190232970A1
公开(公告)日:2019-08-01
申请号:US16330933
申请日:2017-09-06
申请人: DENSO CORPORATION
IPC分类号: B60W50/038 , G01S13/06 , B60W40/072 , B60W40/105
CPC分类号: B60W50/038 , B60T8/1755 , B60T2230/04 , B60W10/00 , B60W10/06 , B60W10/11 , B60W10/184 , B60W30/188 , B60W40/072 , B60W40/105 , B60W40/107 , B60W2550/146 , B60W2550/402 , G01S13/06 , G08G1/16
摘要: A command calculation unit calculates a target speed at each point on a road ahead of the own vehicle, and calculates a drive command for driving the own vehicle in the longitudinal direction of the own vehicle, based on the target speed and a current speed of the own vehicle. When output of the drive command that has been stopped is restarted, the command calculation unit adjusts the drive command, using an acceleration limit limiting acceleration of the own vehicle, or a jerk limit that limits jerk of the own vehicle. An output control unit controls output of the drive command, based on an input from at least one of a driver's operation of the own vehicle, and from another control system of the own vehicle. The output control unit temporarily reduces the value of at least one of the acceleration limit, the jerk limit and the drive command when restarting output of the drive command that was previously stopped.
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公开(公告)号:US20180354474A1
公开(公告)日:2018-12-13
申请号:US15618454
申请日:2017-06-09
发明人: Chen Zhang , Li Xu , Yanan Zhao , George Edmund Walley, III , Mark Davison
CPC分类号: B60T7/12 , B60T7/122 , B60T8/172 , B60T8/72 , B60T2201/02 , B60T2230/04
摘要: A computer is programmed to determine a target brake torque that is below a preset holding brake torque and at least high enough to hold a vehicle at standstill; and upon detecting that a brake of the vehicle is applied and a speed of the vehicle is below a threshold, monotonically reduce a brake torque of the brake so that the brake torque reaches the target brake torque when the speed reaches substantially zero.
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公开(公告)号:US20180222459A1
公开(公告)日:2018-08-09
申请号:US15506721
申请日:2015-07-22
发明人: James KELLY , David ARMSTRONG
IPC分类号: B60T8/1761 , B60W10/06 , B60W10/188 , B60W30/18 , B60T8/32
CPC分类号: B60T8/1761 , B60T8/00 , B60T8/3275 , B60T2210/16 , B60T2230/04 , B60T2270/303 , B60W10/06 , B60W10/188 , B60W30/18109 , B60W2510/182 , B60W2520/10 , B60W2520/105 , B60W2710/105 , B60W2720/106
摘要: A method of controlling the deceleration of a vehicle to account for an increase in friction in the vehicle brake system as the vehicle decelerates. The method comprises receiving a signal indicative of a value of the speed of the vehicle and a signal indicative of a value of a brake pressure in the vehicle brake system. The method further comprises comparing the vehicle speed value and the brake pressure value to respective thresholds. The method still further comprises increasing the drive torque applied to one or more wheels of the vehicle when the vehicle speed value falls below the threshold to which it was compared and the brake pressure value exceeds the threshold to which it was compared, such that the increased drive torque acts against the braking of the vehicle as the vehicle is decelerated to a stop.
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公开(公告)号:US20180015997A1
公开(公告)日:2018-01-18
申请号:US15209105
申请日:2016-07-13
申请人: Embraer S.A.
CPC分类号: B64C13/16 , B60T7/042 , B60T8/1703 , B60T8/18 , B60T8/325 , B60T2230/03 , B60T2230/04 , B64C25/34 , B64C25/42 , B64C25/50 , B64D45/00
摘要: A flight control law enhances braking efficiency through the operation of aircraft elevators (or another pitch control system) using measured longitudinal acceleration and/or pedal position as references to the control law. Through this solution, it is possible to increase the vertical load in the main landing gear and consequently enhance braking efficiency.
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公开(公告)号:US20180015925A1
公开(公告)日:2018-01-18
申请号:US15545785
申请日:2015-01-26
发明人: Hiroyuki KOMATSU , Ken ITO , Takashi NAKAJIMA , Yuji KATSUMATA , Akira SAWADA
IPC分类号: B60W30/18 , B60L7/10 , B60W40/105 , B60W10/08 , B60W10/184
CPC分类号: B60W30/18127 , B60L7/10 , B60L7/24 , B60L15/20 , B60L2260/22 , B60T1/10 , B60T7/12 , B60T8/17 , B60T13/586 , B60T13/588 , B60T2230/04 , B60T2270/604 , B60T2270/82 , B60W10/08 , B60W10/184 , B60W30/18118 , B60W40/10 , B60W40/105 , B60W2510/081 , B60W2510/083 , B60W2520/10 , B60W2540/10 , B60W2550/142 , B60W2710/18 , F16D61/00 , Y02T10/7241 , Y02T10/7275
摘要: The device that generates the friction braking force to decelerate the vehicle estimates the disturbance torque acting on the vehicle. When the accelerator operation amount is equal to or less than the predetermined value and the vehicle is just before the stop of the vehicle, the control device for vehicle causes the friction braking amount to converge to the friction braking amount to the value decided on the basis of the disturbance torque estimated value Td in conjunction with the reduction in the motor rotation speed (speed parameter) proportionate to the traveling speed of the vehicle.
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公开(公告)号:US20170259670A1
公开(公告)日:2017-09-14
申请号:US15065325
申请日:2016-03-09
CPC分类号: B60L7/18 , B60K6/48 , B60L7/26 , B60L15/2009 , B60L2240/423 , B60T1/10 , B60T13/586 , B60T2230/04 , B60T2260/04 , B60T2270/60 , B60T2270/604 , B60W10/08 , B60W10/184 , B60W20/14 , B60W30/18127 , B60W2520/30 , B60W2540/10 , B60W2540/12 , B60W2710/083 , B60W2710/18 , Y02T10/645 , Y02T10/72 , Y02T10/7275 , Y10S903/903 , Y10S903/947
摘要: A vehicle includes a powertrain, an electric machine, a battery, and a controller. The powertrain is configured to transfer motive power to the electric machine to charge the battery during regenerative braking. The controller programmed to, in response to a decreasing demanded powertrain output torque, adjust a regenerative braking torque limit based on an anti-jerk torque schedule, generate an actual regenerative braking torque based on system constraints, and limit the actual regenerative braking torque to the regenerative braking torque limit.
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10.
公开(公告)号:US20170217410A1
公开(公告)日:2017-08-03
申请号:US15309866
申请日:2015-04-10
发明人: Henning KERBER , Mario ROSZYK , Dieter BURKHARD
IPC分类号: B60T8/1761 , B60T8/1763
CPC分类号: B60T8/17616 , B60T8/17636 , B60T2210/124 , B60T2210/14 , B60T2230/04
摘要: The invention relates to a method for improving the control behavior of an electronic motor vehicle braking system which comprises at least a slip control function. Wheel dynamic information which is evaluated as a criterion for initiating a control intervention is used individually for each wheel and is compared with control thresholds for a pressure reduction phase, a pressure maintenance phase, and a pressure buildup phase for generating corresponding braking torques by means of a vehicle braking system. According to the invention, the expected acceleration change of a vehicle wheel is calculated from a pressure change at said wheel, said pressure change being caused by a control intervention; the actual acceleration change at the vehicle wheel, said acceleration change being caused by the pressure change, is determined from measured wheel speeds as wheel dynamic information; and the control behavior of the slip control is adapted when the actual acceleration change deviates from the expected acceleration change by a defined degree such that the deviation is minimized.
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