-
公开(公告)号：US20240253637A1
公开(公告)日：2024-08-01
申请号：US18163086
申请日：2023-02-01
CPC分类号： B60W30/18172 , B60L15/2063 , B60L2240/12 , B60L2240/24 , B60L2250/26 , B60W2540/12 , B60W2552/40 , B60W2710/207 , B60W2720/28
摘要： Methods and systems are provided for operating a vehicle in a mode to free the vehicle from being stuck in sand are presented. In one example, a speed of an electric machine is adjusted to determine when wheel jitter occurs. The electric machine speed may be maintained at a speed where wheel jitter occurs while the vehicle is stuck.
-
公开(公告)号：US11713043B2
公开(公告)日：2023-08-01
申请号：US17130061
申请日：2020-12-22
IPC分类号： B60W30/188 , B60W10/08 , B60L15/20 , B60K7/00 , B60L50/60
CPC分类号： B60W30/188 , B60K7/0007 , B60L15/20 , B60W10/08 , B60K2007/0092 , B60L50/60 , B60W2510/081 , B60W2710/083
摘要： A vehicle includes a first axle having a first electric machine, a second axle having a second electric machine and a controller. The controller is programmed to, in a user-selected four-wheel drive mode, command a first torque to the first electric machine based on a driver-demanded torque and a speed of the second axle, and command a second torque to the second electric machine based on a comparison of the driver-demanded torque and the first torque and further based on a speed of the first axle.
-
公开(公告)号：US20200079229A1
公开(公告)日：2020-03-12
申请号：US16124522
申请日：2018-09-07
发明人： Joseph Torres , Paul Moubarak , Jonathan Sullivan
IPC分类号： B60L15/20
摘要： Methods and systems are provided for operating a vehicle during operating conditions where wheel slip may occur. In one example, a torque vectoring electric machine torque output is adjusted to direct propulsion torque from one wheel to a different wheel. Additionally, the propulsive torque is adjusted responsive to a driver demand wheel torque.
-
公开(公告)号：US10801598B2
公开(公告)日：2020-10-13
申请号：US16183034
申请日：2018-11-07
发明人： Jonathan Sullivan
摘要： An electric axle drive utilizes an electric motor to propel both half-shafts via final drive gearing and a differential. Torque vectoring gearing alters the torque distribution by transmitting power from one of the half shafts to the motor or from the motor to the half-shaft in response to engagement of brakes. Both the final drive gearing and the torque vectoring gearing are implemented using stepped planetary gear sets. The final drive gearing and differential are located on one end of the electric motor. The torque vectoring gearing is located on the opposite end of the electric motor.
-
公开(公告)号：US11602998B2
公开(公告)日：2023-03-14
申请号：US17142029
申请日：2021-01-05
发明人： Jonathan Sullivan , Kevin Mackenzie
摘要： An electrified vehicle, system, and method include an electric machine, a traction battery coupled to the electric machine, and a controller programmed to control wheel slip to provide high wheel slip to traverse deformable terrain, such as sand or loose soil, and lower wheel slip to avoid excessive soil removal beneath the wheels after detecting a vertical acceleration or heave event, such as after landing when driving over a jump or bump. When vehicle vertical acceleration exceeds a first threshold, and a ratio of a wheel angular acceleration to vehicle longitudinal acceleration exceeds a second threshold, the electric machine is controlled to limit wheel slip to a lower value that provides sufficient tractive force to maintain some forward motion. Otherwise, the electric machine is controlled to limit wheel slip to a higher value to accommodate higher vehicle speeds over the deformable terrain.
-
公开(公告)号：US11279240B2
公开(公告)日：2022-03-22
申请号：US16513415
申请日：2019-07-16
摘要： A vehicle electric torque vectoring system includes a traction motor, a vectoring motor, gears, and a controller. The gears transfer torque from the propulsion and vectoring motors to wheels. The controller, responsive to a step change in an unmodified torque request for the vectoring motor and a predicted torque response of the vectoring motor being greater than the unmodified torque request, commands the vectoring motor to generate torque with a modified torque request less than the unmodified torque request. The controller further, responsive to the predicted torque response becoming less than the unmodified torque request, commands the vectoring motor to generate torque with the unmodified torque request.
-
公开(公告)号：US20210016667A1
公开(公告)日：2021-01-21
申请号：US16513415
申请日：2019-07-16
IPC分类号： B60L15/20 , B60W30/045 , B60K17/04
摘要： A vehicle electric torque vectoring system includes a traction motor, a vectoring motor, gears, and a controller. The gears transfer torque from the propulsion and vectoring motors to wheels. The controller, responsive to a step change in an unmodified torque request for the vectoring motor and a predicted torque response of the vectoring motor being greater than the unmodified torque request, commands the vectoring motor to generate torque with a modified torque request less than the unmodified torque request. The controller further, responsive to the predicted torque response becoming less than the unmodified torque request, commands the vectoring motor to generate torque with the unmodified torque request.
-
公开(公告)号：US11752826B2
公开(公告)日：2023-09-12
申请号：US17670750
申请日：2022-02-14
发明人： Matthew Johnson , Keith Weston , Jonathan Sullivan , David Michael Russell , Rohit Hippalgaonkar
IPC分类号： B60G17/016 , B60G21/10 , B60G17/0195 , B60G17/052
CPC分类号： B60G17/016 , B60G17/0195 , B60G21/106 , B60G17/052 , B60G2202/152 , B60G2400/204 , B60G2400/208 , B60G2400/25 , B60G2500/10 , B60G2500/201 , B60G2600/04 , B60G2600/16 , B60G2600/602
摘要： A method of controlling a vehicle may include determining a proximity to a stuck condition based on measured vehicle motion parameters and a wheel speed measured by a wheel speed sensor associated with one or more wheels of the vehicle. The method may further include generating a notification to a driver of the vehicle in response to the proximity to the stuck condition indicating that the vehicle is either in a stuck condition or a nearly stuck condition, and responsive to driver selection of an unstuck mode, executing an unstuck algorithm to automatically control operation of the vehicle to achieve a free condition.
-
公开(公告)号：US20230256786A1
公开(公告)日：2023-08-17
申请号：US17670750
申请日：2022-02-14
发明人： Matthew Johnson , Keith Weston , Jonathan Sullivan , David Michael Russell , Rohit Hippalgaonkar
IPC分类号： B60G17/016 , B60G21/10 , B60G17/0195
CPC分类号： B60G17/016 , B60G21/106 , B60G17/0195 , B60G2400/208 , B60G2400/25 , B60G2500/10 , B60G2500/201 , B60G2202/152 , B60G17/052
摘要： A method of controlling a vehicle may include determining a proximity to a stuck condition based on measured vehicle motion parameters and a wheel speed measured by a wheel speed sensor associated with one or more wheels of the vehicle. The method may further include generating a notification to a driver of the vehicle in response to the proximity to the stuck condition indicating that the vehicle is either in a stuck condition or a nearly stuck condition, and responsive to driver selection of an unstuck mode, executing an unstuck algorithm to automatically control operation of the vehicle to achieve a free condition.
-
公开(公告)号：US20220194378A1
公开(公告)日：2022-06-23
申请号：US17130061
申请日：2020-12-22
IPC分类号： B60W30/188 , B60L15/20 , B60K7/00 , B60W10/08
摘要： A vehicle includes a first axle have a first electric machine, a second axle having a second electric machine and a controller. The controller is programmed to, in a user-selected four-wheel drive mode, command a first torque to the first electric machine based on a driver-demanded torque and a speed of the second axle, and command a second torque to the second electric machine based on a comparison of the driver-demanded torque and the first torque and further based on a speed of the first axle.
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.017 秒)
