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公开(公告)号：US5197566A
公开(公告)日：1993-03-30
申请号：US642975
申请日：1991-01-18
IPC分类号： G01P3/44 , B60K17/346 , B60K17/35 , B60K23/08
CPC分类号： B60K23/0808
摘要： A four-wheel drive vehicle has a center differential which transmits the output torque of a power plant to both front and rear wheels in such a manner as to permit the front and rear wheels to rotate at different speeds. A differential control system has a differential rotation limit member which acts on the center differential to limit differential rotation of the front and rear wheels to a degree which is increased as the difference in rotational speed between the front and rear wheels increases. The degree of limitation on the differential rotation of the front and rear wheels is changed according to a predetermined characteristics which nullifies the degree of limitation in a range where the difference in rotational speed is relatively small and provides a gain in a range where the difference in rotational speed is relatively large. The gain is changed according to a factor which governs the running condition of the vehicle.
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公开(公告)号：US5178231A
公开(公告)日：1993-01-12
申请号：US643238
申请日：1991-01-18
IPC分类号： B60K17/35 , B60K17/346 , B60K23/08
CPC分类号： B60K23/0808
摘要： A four-wheel drive vehicle has a center differential which transmits the output torque of a power plant to both front and rear wheels in such a manner as to permit the front and rear wheels to rotate at different speeds. A differential control system has a differential rotation limit member which acts on the center differential to limit differential rotation of the front and rear wheels to a degree which is determined according to the difference in rotational speed between the front and rear wheels. The degree of limitation on the differential rotation of the wheels is determined according to the difference in rotational speed between the front and rear wheels based on first characteristics when the rotational speed of the front wheels is higher than that of the rear wheels and based on second characteristics when the rotational speed of the rear wheels is higher than that of the front wheels. The first and second characteristics are set separately from each other.
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公开(公告)号：US4933859A
公开(公告)日：1990-06-12
申请号：US263416
申请日：1988-10-27
IPC分类号： B60K31/00 , B60K31/04 , B60W30/00 , F02D29/00 , F02D29/02 , F02D45/00 , F16H59/18 , F16H61/00 , F16H61/02 , F16H63/40
CPC分类号： B60K31/047 , F16H2059/186 , F16H61/0213 , Y10T477/676
摘要： A constant-speed cruising control system for a vehicle having an automatic transmission includes a vehicle speed controller which controls the throttle valve of the engine on the basis of the difference between a target vehicle speed and the actual vehicle speed so that the latter approaches the former, a gear shifting mechanism which receives a gear shifting command and shifts the gear stage of the automatic transmission according to the content of the gear shifting command which it receives, and a gear-shifting controller which receives an engine load signal representing the load on the engine and a speed difference signal representing the difference between said target vehicle speed and the actual vehicle speed, and delivers to the gear shifting mechanism a gear shifting command which requires the gear shifting mechanism to shift the gear stage down either when the load on the engine is not lighter than a first preset value or when the load on the engine is lighter than the first preset value and heavier than a second preset value and at the same time the difference between the target vehicle speed and the actual vehicle speed is larger than a preset speed.
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4.发明授权Automatic transmission control system for a vehicle having constant-speed cruising control system 失效具有恒速巡航控制系统的车辆自动变速箱控制系统
公开(公告)号：US4913006A
公开(公告)日：1990-04-03
申请号：US264141
申请日：1988-10-28
CPC分类号： B60K31/047 , F16H61/0213 , Y10T477/676 , Y10T477/6934 , Y10T477/693625
摘要： An automatic transmission control system for controlling an automatic transmision for use in a vehicle provided with a throttle control system which electrically controls a throttle valve to control the engine output according to the amount of depression of the accelerator pedal and a constant-speed cruising control system which makes the vehicle cruise at a desired constant speed includes a first gear-stage setting system which designates a gear stage of the automatic transmission on the basis of a first gear-shifting pattern, which applies when the constant-speed cruising control is not performed, and in which the gear stages of the automatic transmission are related to the detected amount of depression of the accelerator pedal and the vehicle speed or a value corresponding to the vehicle speed, and a second gear-stage setting system which designates a gear stage of the automatic transmission on the basis of a second gear-shifting pattern, which applies when the constant-speed cruising control is performed in which the gear stages of the automatic transmission are related to the vehicle speed or a value corresponding to the vehicle speed, and a variable independent of the detected amount of depression of the accelerator pedal.
摘要翻译： 一种用于控制用于车辆的自动变速器的自动变速器控制系统，其具有节气门控制系统，所述节气门控制系统电控制节气门以根据加速器踏板的下压量和恒速巡航控制系统来控制发动机输出 这使得以期望的恒定速度行驶的车辆包括第一档位设定系统，其基于不执行定速巡航控制时应用的第一换档模式来指定自动变速器的档位级 ，并且其中自动变速器的齿轮级与检测到的加速器踏板的下压量和车速或对应于车速的值有关;以及第二齿轮级设定系统，其指定齿轮级的 基于第二档位换档模式的自动变速器，适用于定速档 执行自动变速器的档位与车速或对应于车速的值相关联的进给控制，以及独立于检测到的加速器踏板的下压量的变量。
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公开(公告)号：US4762196A
公开(公告)日：1988-08-09
申请号：US74783
申请日：1987-07-17
申请人： Yasuhiro Harada , Kazutoshi Nobumoto , Eizi Nishimura , Toru Onaka , Mitsuru Nagaoka , Toshihiro Matsuoka
发明人： Yasuhiro Harada , Kazutoshi Nobumoto , Eizi Nishimura , Toru Onaka , Mitsuru Nagaoka , Toshihiro Matsuoka
摘要： The vehicle slip control apparatus is designed so as to enable the slip control to be done by causing the output torque of the engine to be reduced and operating the brake when an amount of a slip or spinning of the driving wheels is large, on the one hand, and only by causing the output torque of the engine to be reduced without using the brake when an amount of the slip or spinning of the driving wheels is small.
摘要翻译： 车辆滑动控制装置被设计成使得能够通过使发动机的输出扭矩减小并且当驱动轮的滑动或旋转的量大时在其上操作制动来实现滑移控制 并且只有当驱动轮的滑动或旋转的量小时，通过使发动机的输出转矩减小而不使用制动器。
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公开(公告)号：US4884651A
公开(公告)日：1989-12-05
申请号：US76172
申请日：1987-07-21
摘要： The vehicle slip control apparatus is designed so as to enable the slip control to be done by causing the output torque of the engine to be reduced and operating the brake when an amount of a slip or spinning of the driven wheels is large. A control ratio of the slip control by the brake to the slip control by the engine is altered to an optimum value in accordance with requirements for the driving of the vehicle.
摘要翻译： 车辆滑动控制装置被设计成能够通过使发动机的输出扭矩减小并且当从动轮的滑动或旋转的量大时来操作制动来实现滑移控制。 根据车辆的驾驶要求，通过制动器对发动机的滑动控制的滑动控制的控制比改变为最佳值。
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公开(公告)号：US4779696A
公开(公告)日：1988-10-25
申请号：US76886
申请日：1987-07-23
CPC分类号： B60T8/175 , B60T2270/208 , F02B1/04
摘要： The slip control is conducted so as to cause an amount of the slip of the driven wheel to become a target value by controlling the torque to be transmitted to the driven wheel. The target value is altered during the slip control on the basis of a requirement for road holding capabilities of the driven wheel against a road surface.
摘要翻译： 进行滑差控制，以通过控制要被传递到从动轮的转矩来使从动轮的滑动量成为目标值。 基于对从动轮相对于路面的道路保持能力的要求，在滑移控制期间改变目标值。
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