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    • 4. 发明授权
    • Control apparatus for hydraulically operated vehicular transmission
    • 液压操纵车辆变速箱控制装置
    • US5887483A
    • 1999-03-30
    • US935956
    • 1997-09-23
    • Tatsuyuki OhashiHideo FukushiOsahide MiyamotoNorio Nakauchi
    • Tatsuyuki OhashiHideo FukushiOsahide MiyamotoNorio Nakauchi
    • F16H59/08F16H59/44F16H61/02F16H61/04F16H61/16F16H61/00
    • F16H61/0246B60W2510/104F16H2061/0488F16H2061/161F16H59/08F16H59/44F16H61/16Y10T477/689Y10T74/1926
    • 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.
    • 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。
    • 6. 发明授权
    • System for estimating temperature of vehicle hydraulically-operated
transmission
    • 车辆液压传动装置温度估算系统
    • US5960669A
    • 1999-10-05
    • US921353
    • 1997-08-29
    • Tatsuyuki OhashiYoshirou TashiroToshiyuki SuzukiKaname Tokita
    • Tatsuyuki OhashiYoshirou TashiroToshiyuki SuzukiKaname Tokita
    • F16H59/46F16H59/64F16H59/72F16H59/68
    • F16H59/72B60W2510/0676F16H2059/467F16H59/64Y10T477/653Y10T74/19251
    • A system for estimating a temperature of a vehicle hydraulically-operated transmission including a hydraulic torque converter, a plurality of frictional engaging elements such as clutches installed in the transmission and a hydraulic pressure supplying circuit for discharging hydraulic fluid from one of said plurality of frictional engaging elements and for supplying hydraulic fluid to another to bring said one and another one of said plurality of frictional engaging elements into operation such that gear-shift is effected in the transmission. A heat quantity generated by the hydraulic coupling means (.DELTA.Ttr), a heat quantity generated by at least one of the frictional engaging elements at gearshift (.DELTA.Tcl(No)), a heat quantity generated by stirring of the hydraulic fluid (.notident.Tst), a heat quantity generated or absorbed at a heat exchanger which exchanges heat from the fluid (.DELTA.Tra), and some similar values are calculated and summed to estimate a temperature of the clutches, thereby enabling a fine hydraulic pressure control.
    • 一种用于估计车辆液压操作变速器的温度的系统,包括液压变矩器,多个摩擦接合元件,例如安装在变速器中的离合器,以及液压供应回路,用于从所述多个摩擦接合 并且用于将液压流体供应到另一个以使所述多个摩擦接合元件中的所述一个和另一个摩擦接合元件进行操作,使得变速器在变速器中进行变速。 由液压联接装置(DELTA Ttr)产生的热量,由换档(DELTA Tcl(No))中的至少一个摩擦接合元件产生的热量,通过搅拌液压流体产生的热量(NOTEQUAL Tst ),计算在热交换器中产生或吸收的热量(来自流体(DELTA Tra))的热量和一些类似的值,以估计离合器的温度,从而实现精细的液压控制。
    • 7. 发明授权
    • Control apparatus for hydraulically operated vehicular transmission
    • 液压操纵车辆变速箱控制装置
    • US6007458A
    • 1999-12-28
    • US929264
    • 1997-09-11
    • Tatsuyuki OhashiShoichi TanizawaKouji ShibuyaHiromitsu IshibashiKazuo Okada
    • Tatsuyuki OhashiShoichi TanizawaKouji ShibuyaHiromitsu IshibashiKazuo Okada
    • F16H59/68F16H61/02F16H61/06F16H61/08
    • F16H61/061B60W2710/025F16H2059/6807F16H2059/706F16H61/0206F16H61/08Y10T477/6937Y10T477/69383Y10T477/69387
    • Upshifting is performed in a short time without giving rise to shocks. For that purpose, at the time of upshifting, a hydraulic pressure (QUPOFF) of a hydraulic engaging element on disengaging side is controlled such that the input and output speed ratio ("Gratio") of a transmission is decreased to, and held at, a predetermined slipping region (YG(N)S) that is lower than an engaging region (YG(N)L)-YG(N)H) to be set based on a gear ratio which is established by the engagement of the hydraulic engaging element on the disengaging side. The hydraulic pressure (QUPON) of a hydraulic engaging element on engaging side is gradually increased. When "Gratio" once falls below YG(N)L and then increases up again to YGCONOK, QUPOFF is lowered to a predetermined low pressure (QUPOFFB) at a lapse of a predetermined time (YTMUP8). Once "Gratio">YGCONOK, QUPON is increased to a predetermined high pressure QUPONB at a lapse of a second predetermined time YTMUP3. YTMUP8 is set so as to become shorter with an increase in a vehicle speed, and YTMUP3 is set so as to become longer with an increase in the vehicle speed.
    • 快速移动在短时间内进行,而不会引起冲击。 为此,在升档时,控制液压接合元件在分离侧的液压(QUPOFF),使得变速器的输入和输出速度比(“Gratio”)减小到并保持在, 基于通过液压接合的接合确定的齿轮比来设定低于接合区域(YG(N)L)-YG(N)H)的预定滑动区域(YG(N)S) 分离侧的元件。 液压接合元件在接合侧的液压(QUPON)逐渐增加。 当“Gratio”一旦下降到YG(N)L以下,然后再次增加到YGCONOK时,QUPOFF在预定时间(YTMUP8)下降到预定的低压(QUPOFFB)。 一旦“Gratio”> YGCONOK,QUPON在第二预定时间YTMUP3经过时增加到预定的高压QUPONB。 YTMUP8被设定为随着车速的增加而变短,并且YTMUP3被设定为随着车速的增加而变长。