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1. 发明授权

US11584352B2 Estimation of vehicle speed in all-wheel-drive vehicle 有权
公开(公告)号：US11584352B2
公开(公告)日：2023-02-21
申请号：US16155282
申请日：2018-10-09
申请人： Ford Global Technologies, LLC
发明人： Jose Velazquez Alcantar , Joseph Jay Torres , Peter James Barrette , Richard David Bruns , Corwin Stout , Rajit Johri
IPC分类号： B60W20/10 , B60K6/52 , B60T8/172 , B60T8/175 , B60T8/1761 , B60T8/1769 , B60L15/38 , B60W30/18
摘要： A vehicle includes an electric machine and a controller. The controller is programmed to responsive to a threshold difference, indicative of wheel slip, between average wheel speed and a vehicle speed that is based on a difference between wheel acceleration and measured vehicle acceleration, command a speed to the electric machine to reduce the wheel slip.

2. 发明申请

US20220410855A1 BRAKING CONTROL DEVICE FOR VEHICLE 有权
公开(公告)号：US20220410855A1
公开(公告)日：2022-12-29
申请号：US17778984
申请日：2020-11-25
申请人： ADVICS CO., LTD.
发明人： Masato TERASAKA , Chisa KITAHARA
IPC分类号： B60T8/1761 , B60T8/172 , B60T8/1769
摘要： A braking control device includes: a wheel deceleration deriving section that derives decrease rates of wheel speed detection values as wheel deceleration calculation values; an average value deriving section that derives an average value of the wheel deceleration calculation values of wheels FL, FR, RL, and RR as a wheel deceleration average value; a determination section that determines, based on the wheel deceleration average value and an anteroposterior deceleration detection value, whether or not a slip increase state has been occurring for a determination time or longer; and a detection section that detects occurrence of cascade lock when it is determined that the slip increase state has been occurring for the determination time or longer during vehicle braking.

3. 发明申请

US20210229646A1 METHOD AND SYSTEM OF CONTROLLING BRAKING OF VEHICLE 有权
公开(公告)号：US20210229646A1
公开(公告)日：2021-07-29
申请号：US16879495
申请日：2020-05-20
申请人： Hyundai Motor Company , Kia Motors Corporation
发明人： Gwi Chul Kim
IPC分类号： B60T8/1755 , B60T8/1769 , B60T8/1761 , B60T8/32
摘要： A method of controlling braking of a vehicle is provided. When a disconnector is disconnected and an auxiliary drive wheel is separated from a driving system, vehicle braking is performed with regenerative braking by a primary drive wheel motor during braking. Subsequently, the disconnector is connected based on a vehicle stability state, and then, braking is performed simultaneously on the auxiliary drive wheel and a primary drive wheel.

4. 发明申请

US20210070266A1 ELECTRIC VEHICLE AND METHOD FOR CONTROLLING ELECTRIC VEHICLE 有权
公开(公告)号：US20210070266A1
公开(公告)日：2021-03-11
申请号：US17014392
申请日：2020-09-08
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Atsushi TABATA , Koichi OKUDA , Tooru MATSUBARA , Yuuki MAKINO
IPC分类号： B60T8/1769 , B60K1/00 , B60L15/20 , B60K17/22 , B60K17/34 , B60K23/08
摘要： When braking of the electric vehicle is performed, the braking is controlled based on a target braking split ratio which is a target value of the ratio of the braking force that is applied to the rear wheels to a total braking force that is applied to the front and rear wheels. In this case, an initial value of the target braking split ratio is set to a value within an allowable range about a transmission split ratio when braking of the electric vehicle is started while the electric vehicle is being braked by the motor, the transmission split ratio being the ratio of a braking force that is transmitted from a drive shaft to the rear wheels via a driving force split device to a total braking force that is transmitted from the drive shaft to the front and rear wheels via the driving force split device.

5. 发明申请

US20210070119A1 ALL-WHEEL DRIVE LINE LOCK FOR WARMING TIRES DURING TRACK USAGE 有权
公开(公告)号：US20210070119A1
公开(公告)日：2021-03-11
申请号：US17101580
申请日：2020-11-23
申请人： Ford Global Technologies, LLC
发明人： Ethan D. SANBORN , James FRITZ
IPC分类号： B60C99/00 , B60T13/66 , B60T13/68 , B60T8/175 , B60W10/188 , B60W10/192 , B60T8/26 , B60T8/1766 , B60T8/1769 , B60C11/03 , B60T7/12
摘要： A vehicle includes a powerplant, such as an engine, configured to power front and rear wheels, and a controller. The controller is programmed to, brake a first of the front wheels and a first of the rear wheels while powering a second of the front wheels and a second of the rear wheels to warm those tires, and subsequently brake the second front wheel and the second rear wheel while powering the first front wheel and the first rear wheel to warm those tires.

6. 发明授权

US09416876B2 System and method for using all wheel drive coupling to enhance electronic parking brake function on a motor vehicle 有权
标题翻译：使用所有车轮驱动联轴器来增强机动车辆上的电子驻车制动功能的系统和方法
公开(公告)号：US09416876B2
公开(公告)日：2016-08-16
申请号：US14517125
申请日：2014-10-17
申请人： American Axle & Manufacturing, Inc.
发明人： Russell T. Capito
IPC分类号： B60K17/346 , B60K23/08 , B60K6/52 , B60T8/32 , B60T8/1766 , B60T8/1769 , F16H63/48 , B60T8/17 , B60T8/24
CPC分类号： F16H63/486 , B60K23/0808 , B60T1/062 , B60T8/1701 , B60T8/1769 , B60T8/245
摘要： A system and method is disclosed for applying a counter torque to at least one axle of a motor vehicle, wherein the motor vehicle has an electronic parking brake (EPB) subsystem, to thus enhance a braking action of the vehicle while the EPB subsystem is engaged. In one embodiment the system may have an all wheel drive (AWD) system configured to process electronic information received by the AWD system that informs the AWD system that the EPB subsystem has been engaged, and to then apply a counter torque to the at least one axle of the vehicle. The system may also at least one of release the counter torque after receiving electronic information informing the AWD system that the EPB subsystem has been disengaged, or return to a torque value required for AWD system operation.
摘要翻译：公开了一种用于向机动车辆的至少一个轴施加逆转矩的系统和方法，其中所述机动车辆具有电子驻车制动器（EPB）子系统，从而在EPB子系统接合时增强车辆的制动动作。在一个实施例中，系统可以具有全轮驱动（AWD）系统，其被配置为处理由AWD系统接收的电子信息，其通知AWD系统EPB子系统已被接合，然后将反转矩施加到至少一个车轴。该系统还可以在接收到向AWD系统通知EPB子系统已经被分离的电子信息之后释放反转矩中的至少一个，或者返回到AWD系统操作所需的转矩值。

7. 发明申请

US20120203439A1 METHOD FOR CONTROLLING A VEHICLE HAVING ONLY A BRAKED REAR AXLE AND BRAKE SLIP CONTROL 有权
标题翻译：仅具有制动后轴和制动滑动控制的车辆的控制方法
公开(公告)号：US20120203439A1
公开(公告)日：2012-08-09
申请号：US13264608
申请日：2010-04-16
申请人： Martin Mederer , Andreas Wimmer
发明人： Martin Mederer , Andreas Wimmer
IPC分类号： B60T8/1769
CPC分类号： B60T8/1769 , B60T8/322 , B60T8/327 , B60T2270/12
摘要： A method is described for controlling a vehicle having a pressure-medium-activated brake device which includes wheel brakes and brake circuits on each side, on only at least one rear axle, and having a drive engine which drives the rear wheels of the at least one rear axle, in which the rear wheels can be optionally or automatically coupled to or decoupled from front wheels of a front axle in order to transmit driving and/or braking power. Also described is a vehicle having a brake device which includes wheel brakes and brake circuits on each side on only at least one rear axle, and having a drive engine which drives the rear wheels of the at least one rear axle, in which the rear wheels can be optionally or automatically coupled to or decoupled from the front wheels of a front axle in order to transmit driving and/or braking power.
摘要翻译：描述了一种用于控制具有压力 - 介质激活的制动装置的车辆的方法，该制动装置在每侧仅在至少一个后桥上包括车轮制动器和制动器回路，并且具有驱动发动机，该驱动发动机至少驱动至少的后轮一个后桥，其中后轮可以可选地或自动地联接到前桥的前轮或从前轴的前轮去耦，以便传递驱动和/或制动功率。还描述了一种具有制动装置的车辆，该制动装置在仅在至少一个后轴上的每一侧上包括车轮制动器和制动回路，并且具有驱动发动机，该驱动发动机驱动至少一个后轴的后轮，其中后轮可以可选地或自动地耦合到前桥的前轮或从前轴的前轮去耦，以便传递驱动和/或制动功率。

8. 发明授权

US6050655A Antiskid brake controller 失效
标题翻译：防滑制动控制器
公开(公告)号：US6050655A
公开(公告)日：2000-04-18
申请号：US969547
申请日：1997-11-13
申请人： Yasuo Naito , Chiaki Fujimoto
发明人： Yasuo Naito , Chiaki Fujimoto
IPC分类号： B60T8/1769 , B60T8/1761 , B60T8/66 , B60T8/84 , B60T8/70
CPC分类号： B60T8/17616
摘要： An antiskid brake controller, which can secure safety by avoiding a cascade caused when a braking pressure is reduced in a four-wheel-drive vehicle, includes wheel speed sensors braking force adjuster for adjusting a braking pressure and an ECU for calculating the control amount of a breaking force adjuster so as to prevent the locking tendency of each of the wheels based on a wheel speed Vw. The ECU includes means for the wheel deceleration calculator Gw corresponding to the locking tendency of each of the wheels, a basic vehicle calculator speed, a slip amount calculator SL based on the wheel speed Vw and the basic vehicle speed, cascade determination device for determining the occurrence of the cascade state when an unstable state occurs such that the slip amounts of three wheels are larger than a predetermined value and control amount corrector for changing the control amount of the braking pressure in an increasing pressure reduction amount when the occurrence of the cascade is determined.
摘要翻译：一种防滑制动控制器，其可以通过避免在四轮驱动车辆中制动压力降低时引起的级联来确保安全性，包括用于调节制动压力的车轮速度传感器制动力调节器和用于计算控制量的ECU 破坏力调节器，以便根据车轮速度Vw防止每个车轮的锁定倾向。 ECU包括对应于每个车轮的锁定趋势的车轮减速度计算器Gw，基本车辆计算器速度，基于车轮速度Vw和基本车辆速度的滑移量计算器SL，用于确定发生不稳定状态时的级联状态的发生，使得三个车轮的滑移量大于预定值;以及控制量校正器，用于当级联发生时，在增加的减压量中改变制动压力的控制量决心。

9. 发明授权

US5978726A Driving torque control method and apparatus for a four-wheel drive vehicle 失效
标题翻译：用于四轮驱动车辆的驱动扭矩控制方法和装置
公开(公告)号：US5978726A
公开(公告)日：1999-11-02
申请号：US932180
申请日：1997-09-17
申请人： Masayoshi Takeda , Hideaki Suzuki
发明人： Masayoshi Takeda , Hideaki Suzuki
IPC分类号： B60K23/08 , B60T8/1769 , B60T8/32 , B60T8/48 , B60K28/16
CPC分类号： B60T8/322 , B60T8/1769 , B60T8/48 , B60K23/0808
摘要： A wheel speed differential with another wheel of each of several wheels is determined as a parameter for brake-adjustment use, and driving torque conveyed respectively from an engine to the several wheels is adjusted by braking torque determined on a basis of the parameter for brake-adjustment use so as to restrain the wheel-speed differential. In such a driving torque control, the engine output is reduced if the braking torque is excessive. Therefore, load to the brake apparatus and drivetrain caused by engine output can be reduced. Thus, deterioration of the durability of the brake apparatus and drivetrain can be prevented.
摘要翻译：作为用于制动调整用途的参数，确定与多个车轮中的每一个的轮的速度差，并且通过基于制动调节参数确定的制动转矩来调节分别从发动机传递到多个车轮的驱动转矩，调整使用，以限制车轮速度差。在这样的驱动转矩控制中，如果制动转矩过大，则发动机输出减少。因此，可以减少由发动机输出引起的制动装置和动力传动系统的负载。因此，可以防止制动装置和传动系的耐久性的劣化。

10. 发明授权

US5676434A Anti-skid control based upon estimated coefficient of friction 失效
标题翻译：基于估计摩擦系数的防滑控制
公开(公告)号：US5676434A
公开(公告)日：1997-10-14
申请号：US503937
申请日：1995-07-19
申请人： Hiroyuki Ichikawa , Shinsuke Sakane , Toshihisa Kato
发明人： Hiroyuki Ichikawa , Shinsuke Sakane , Toshihisa Kato
IPC分类号： B60T8/172 , B60T8/1763 , B60T8/1769 , B60T8/66
CPC分类号： B60T8/172 , B60T8/17636 , B60T8/1769
摘要： The invention is directed to an arrangement for controlling a braking force applied to each of front and rear road wheels of a vehicle depending upon a braking condition, with a hydraulic braking pressure supplied to each of the wheel brake cylinders through an actuator. The actuator is controlled by a braking force controller into which output signals of wheel speed sensors are fed. On the basis of the wheel speeds detected by the sensors, an estimated vehicle speed is calculated, and then a varying rate of the estimated vehicle speed is calculated. Furthermore, a wheel speed differential between the front and rear road wheels (or, a wheel slip rate differential therebetween) is calculated. Only when the wheel speed differential (or, the wheel slip rate differential) exceeds a predetermined value, the varying rate of the estimated vehicle speed is compared with a standard rate to estimate a coefficient of friction of the road surface. Then, the hydraulic braking pressure applied to each of the wheel brake cylinders is controlled by the braking force controller in accordance with the estimated coefficient of friction and in response to the each wheel speed.
摘要翻译：本发明涉及一种用于根据制动条件控制施加到车辆的前后车轮中的每一个的制动力的装置，其中通过致动器向每个车轮制动缸提供液压制动压力。执行器由制动力控制器控制，其中馈送有车轮速度传感器的输出信号。基于由传感器检测到的车轮速度，计算估计车速，然后计算估计车速的变化率。此外，计算前轮和后轮之间的车轮速度差（或者它们之间的车轮滑移速率差）。只有当车轮速度差（或车轮滑移率差）超过预定值时，将估计车速的变化率与标准速率进行比较以估计路面的摩擦系数。然后，通过制动力控制器根据估计的摩擦系数并响应于每个车轮速度来控制施加到每个车轮制动缸的液压制动压力。

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