公开(公告)号：US5887483A

公开(公告)日：1999-03-30

申请号：US935956

申请日：1997-09-23

申请人： Tatsuyuki Ohashi ,  Hideo Fukushi ,  Osahide Miyamoto ,  Norio Nakauchi

发明人： Tatsuyuki Ohashi ,  Hideo Fukushi ,  Osahide Miyamoto ,  Norio Nakauchi

IPC分类号： F16H59/08 ,  F16H59/44 ,  F16H61/02 ,  F16H61/04 ,  F16H61/16 ,  F16H61/00

CPC分类号： F16H61/0246 ,  B60W2510/104 ,  F16H2061/0488 ,  F16H2061/161 ,  F16H59/08 ,  F16H59/44 ,  F16H61/16 ,  Y10T477/689 ,  Y10T74/1926

摘要： When switching to a forward running is made while a vehicle is running in a reverse direction, a switching to the forward running condition is made at an early time to thereby prevent the deterioration of the durability of the hydraulic engaging element due to slipping. For that purpose, when a vehicle speed (V) has exceeded a predetermined value (YVa) in a reverse range (R) and also when the vehicle speed (V) has never fallen below the predetermined value (YVa) in a neutral range (N), a reverse signal (FREV=1) is outputted. If FREV=1 at the time of switching to the forward range, the relationship between the vehicle speed and the speed stage (speed change map) is set to one (a reverse-running-measure speed change map) which is different from that at an ordinary time, to thereby determine the speed stage to be established. Then, a low speed stage is established even at a relatively high vehicle speed. Switching is thus made at an early time to the forward running condition with a large torque to be transmitted via the low speed stage.

摘要翻译： 当在车辆沿相反方向行驶时进行向前行驶切换时，早期切换到前进行驶状态，从而防止由于滑动导致的液压啮合元件的耐久性的劣化。 为此目的，当车速（V）在反向范围（R）中超过预定值（YVa）时，以及当车速（V）从未在中性值范围内下降到预定值（YVa）以下时 N），则输出反向信号（FREV = 1）。 如果在切换到正向范围时FREV = 1，则将车速与速度级（速度变化图）的关系设定为与后者的速度不同的一个（反向行驶速度变化图） 一般的时间，从而确定要建立的速度。 然后，即使在相对高的车速下也建立了低速级。 因此，在通过低速级传递大扭矩的情况下，在早期进行切换到正向运行状态。

公开(公告)号：US5317937A

公开(公告)日：1994-06-07

申请号：US930287

申请日：1992-08-17

申请人： Hiroshi Yoshizawa ,  Hideo Fukushi ,  Hideo Furukawa ,  Hiroshi Ishikawa ,  Takafumi Maruyama ,  Satoru Sunada ,  Keiichi Ishikawa

发明人： Hiroshi Yoshizawa ,  Hideo Fukushi ,  Hideo Furukawa ,  Hiroshi Ishikawa ,  Takafumi Maruyama ,  Satoru Sunada ,  Keiichi Ishikawa

IPC分类号： B60K28/16 ,  F16H59/14 ,  F16H59/20 ,  F16H59/24 ,  F16H59/44 ,  F16H59/48 ,  F16H59/50 ,  F16H59/54 ,  F16H59/66 ,  F16H59/68 ,  F16H61/00 ,  F16H61/02 ,  F16H61/16

CPC分类号： F16H61/0213 ,  B60K28/16 ,  F16H2059/142 ,  F16H2059/405 ,  F16H2059/506 ,  F16H2061/0096 ,  F16H2061/0216 ,  F16H2061/0227 ,  F16H59/14 ,  F16H59/20 ,  F16H59/24 ,  F16H59/44 ,  F16H59/48 ,  F16H59/54 ,  F16H59/66 ,  F16H59/68 ,  F16H61/16 ,  F16H61/682 ,  Y02T10/84 ,  Y10T477/692

摘要： A control system of a vehicle automatic transmission in which an engine load and a vehicle speed are detected and used to determine a vehicle acceleration in accordance with the pre-established characteristics. An actual vehicle acceleration is at the same time calculated in response to the detected vehicle speed. The difference therebetween is then calculated and the calculated value is added to a difference calculated earlier to obtain an average therebetween. Five gear shifting scheduling maps, for example, one for moderate hill climbing, one for level-road running, one for steep hill descent, are pre-established and in response to the average obtained, one of the maps is selected. A gear shifting is controlled based on the selected map. In a pre-determined condition, such as when the engine load changes abruptly, braking is in progress and so on, the map selection is suspended and the control is carried out using the map selected earlier.

摘要翻译： 一种车辆自动变速器的控制系统，其中检测发动机负荷和车速并根据预先设定的特性来确定车辆加速度。 根据检测到的车速计算实际的车辆加速度。 然后计算它们之间的差异，并将计算出的值加到较早计算的差值以获得其间的平均值。 预先建立了五个变速调度图，例如一个用于适度爬坡，一个用于水平道路运行，一个用于陡坡下降，并且响应于获得的平均值，选择一个地图。 基于选择的图来控制换档。 在预定条件下，例如当发动机负载突然变化时，制动正在进行等等，则停止地图选择，并且使用先前选择的地图进行控制。

公开(公告)号：US5957810A

公开(公告)日：1999-09-28

申请号：US935958

申请日：1997-09-23

申请人： Tatsuyuki Ohashi ,  Shoichi Tanizawa ,  Hideo Fukushi ,  Osahide Miyamoto ,  Kazuo Okada

发明人： Tatsuyuki Ohashi ,  Shoichi Tanizawa ,  Hideo Fukushi ,  Osahide Miyamoto ,  Kazuo Okada

IPC分类号： F16H61/04 ,  F16H61/16 ,  F16H61/12

CPC分类号： F16H61/16 ,  F16H2306/24 ,  F16H61/0437 ,  Y10S477/906 ,  Y10T477/69383

摘要： There are prevented shocks that will occur when a switchover speed changing is made to transfer from one speed changing, in the midst of that speed changing, to another speed changing when the input and output speed ratio "Gratio", which serves a control parameter, is not accurately detected. For that purpose, there is used a flag FGFAIL for setting "1" when the input and output speed ratio "Gratio", at the time of non-speed changing, does not lie within a predetermined range based on the gear ratio of the speed stage that is being established at that time. A switchover speed changing in which switching to another speed changing is made during a speed changing is prohibited when FGFAIL=1.

摘要翻译： 当控制参数的输入和输出速度比“Gratio”（变频器）的输入和输出速度比“Gratio”变为“变速”时，可以防止当切换速度发生变化时， 没有被准确地检测到。 为此，当非速度变化时的输入和输出速度比“Gratio”基于速度的传动比不在预定范围内时，使用标志FGFAIL来设置“1” 当时正在建立的阶段。 当FGFAIL = 1时，禁止在变速时切换到另一个速度变化的切换速度变化。