|
Match
|
Document |
Document Title |
|
|
8165766 |
Method for controlling a drivetrain of a vehicle, with a drive motor and a gearbox
A method for controlling a vehicles drivetrain including an engine and automatic transmission, such that transmission ratios are shifted within a range of transmission ratios in a continuous and/or...
|
|
|
7953534 |
Vehicle integrated-control apparatus and vehicle integrated-control method
The invention relates to a vehicle integrated-control apparatus and method that sets a final control target by coordinating a control target primarily set based on an input of a driver with...
|
|
|
7914417 |
Shift control apparatus of automatic transmission
A shift control method and apparatus of an automatic transmission for controlling a shift from one speed, achieved by engagement of a first and a second frictional element, to another speed,...
|
|
|
7608012 |
Resolving a non-commanded neutral state in a clutch-to-clutch transmission
A method of controlling a clutch-to-clutch transmission. The method includes detecting transmission slip speed that exceeds a predetermined amount for a predetermined time period. Based on the...
|
|
|
7314428 |
Downshift control for automotive automatic transmission
An automotive automatic transmission control system is provided which is designed to increase the output of an engine in response to a driver's request to downshift a transmission for setting up...
|
|
|
7291092 |
Shift control apparatus and method for automatic transmission
In shift control apparatus and method for an automatic transmission in which an engine speed is inputted, and a shift change in a shift stage of the automatic transmission is performed to make a...
|
|
|
7247126 |
Method and apparatus for shift control of an automatic transmission
Whenever a 4 to 3 shift condition is satisfied during a 3 to 4 upshift, 4 to 3 shifting is started before the 3 to 4 shifting is finished. The 4 to 3 shifting is executed according to a...
|
|
|
7048673 |
Shift control method for six-speed automatic transmission
A shift control method for a gearset with greater than or equal to 5 speeds, allowing to perform a sequential shift and a multi-skip shift in relation to the multi-shift stages, contributing to an...
|
|
|
7014592 |
System and method for controlling an automatic transmission in a vehicle
A method for controlling an automatic transmission in a vehicle is provided. The method selectively provides automatic engine braking for the vehicle. When it is determined that automatic engine...
|
|
|
6843756 |
Downshift control apparatus of vehicular automatic transmission, and control method thereof
In a vehicle in which a moderate throttle opening degree control of maintaining a degree of throttle opening that is less than a degree of throttle opening that corresponds to an accelerator...
|
|
|
6832147 |
Method and apparatus for controlling a vehicle with a gear-shift transmission
In a vehicle with a gear-shift transmission of a kind that requires a torque-free state to shift gears, the riding comfort is improved by a method of shifting gears where a gear shift is preceded...
|
|
|
6699156 |
Method for controlling a transmission of a vehicle
Described is a method for the control of a transmission of a motor vehicle, especially an automatic transmission, with hydraulically activated shifting elements. The shifting elements are shifted...
|
|
|
6346063 |
Vehicle transmission shift control for engagement of frictional coupling device so as to first raise transmission input speed above synchronizing speed
An apparatus for controlling an automatic transmission of an automotive vehicle, which is shifted to a selected one of operating positions by an engaging action of a frictional coupling device,...
|
|
|
6254510 |
Coasting downshift control strategy for a multiple-ratio automatic transmission
A control strategy for a multiple-ratio transmission for an automotive vehicle comprising a shift valve system that responds to shift valve signals developed by a microprocessor controller, the...
|
|
|
6216073 |
Apparatus and method for controlling a speed change of an automatic transmission
A down-shift is carried out when a) the sum of a dry force of a vehicle and a predetermined value, is smaller than a running resistance, and b) when an accelerator opening is larger than a...
|
|
|
6146310 |
Adaptive automated transmission downshift control
A method/system for controlling downshifting in an automated mechanical transmission system (10) utilized on a vehicle. When a downshift from a currently engaged ratio (GR) is required (ES
|
|
|
6106435 |
Tie-up decision device for automatic transmission, and gearshift control apparatus employing the same
In executing a clutch-to-clutch gearshift based on the release and engagement of two clutches by the control of the hydraulic pressures of the clutches, the fluctuating magnitude of the output...
|
|
|
6042506 |
Automatic transmission control having variable fluid pressure decreasing rate at gear shifting
A vehicle automatic transmission control controls fluid pressure changes applied to a frictional engagement element which is being changed from an engaged state to a disengaged state at a stage...
|
|
|
6010428 |
Gearshift control apparatus for automatic transmission
In a gearshift control apparatus for an automatic transmission which performs a downshift under power ON state, after a command for a clutch-to-clutch downshift has been issued, the hydraulic...
|
|
|
5984834 |
Control apparatus for hydraulically operated vehicular transmission
Even if a rotational speed of an engine has already increased due to slipping of a fluid torque converter at the time of start of downshifting, a smooth downshifting is performed. For that purpose,...
|
|
|
5963445 |
Method for the production of actuator signals
In a method for the production of actuator signals as a function of sensor signals in an open-loop and/or closed-loop control system, the sensor signals are read into a data processing device and...
|
|
|
5941795 |
Control system for a single servo during multiple speed changes
The present invention prevents shift shock and reduces time required to execute the complete speed change operation in the case where a second speed change is commanded while a first speed change...
|
|
|
5924958 |
Control system for automatic transmission with servo fill of second shift engagement element during completion of first shift when second shift commanded during first shift
If a shift to the 3rd speed is decided during the 5th-4th speed shift, in which the hydraulic servo for a second clutch is released by pressure regulation control, a changeover valve is switched by...
|
|
|
5913748 |
Downshift control device for automatic transmission
A downshift control device for an automatic transmission is provided in which the transmission is shifted down by releasing an oil pressure from a first engaging element that has been engaged while...
|
|
|
5911648 |
Automatic transmission control method including shifting aberration regulating phase
A method of controlling and regulating an automatic transmission with overlapping gearshifts. The change from the control mode to the regulating mode for the disengaging clutch (11) is made here...
|
|
|
5871418 |
Shift control apparatus in vehicle automatic transmission
A shift control apparatus in a vehicle automatic transmission, where down-shift is carried out from a high velocity step to a low- velocity step.A flatness-aiming control has a common targetted...
|
|
|
5810691 |
Hydraulic changing device for a multi-ratio vehicle transmission
The invention relates to a hydraulic changing device for a multi-ratio vehicle transmission, especially for a commercial vehicle such as a mobile excavator. The hydraulic changing device feeds gear...
|
|
|
5810693 |
Automatic control system for automobiles
An automatic transmission control system for an automatic transmission including a hydraulic pressure control circuit which supplies locking and unlocking pressures selectively to a plurality of...
|
|
|
5778331 |
Kickdown delay in cruise control for automatic transmission
An interactive cruise control system and method for providing automatic speed control of a vehicle with improved shifting of an automatic transmission. The system and method controls speed of a...
|
|
|
5754968 |
Method and arrangement for fuel quantity adjustment in connection with downshift
The invention relates to an improved method and arrangement for implementing that method, for obtaining in motor vehicles with mechanical stepped gearboxes with automatic gear changing a gentle and...
|
|
|
5685799 |
Automatic transmission shift stabilization control
A control for an automatic transmission minimizes shift cycling between adjacent speed ratios due to non-ideal load conditions such as grade climbing and trailering. The control utilizes shift...
|
|
|
5665028 |
Shift capacity control for automatic transmission
A shift capacity control system for an automatic transmission is constructed to determine a state of an engine speed difference after occurrence of a shift command, determine a propriety of a shift...
|
|
|
5609546 |
Vehicular constant speed cruising control device
When an overdrive cut is performed to an automatic transmission control when climbing uphill slopes, the actuator position An is stored in overdrive cut aperture storage value C with overdrive cut...
|
|
|
5596495 |
Gearshift controller for automatic transmission
A system for controlling a downshift in an automatic transmission having a torque converter includes friction elements for alternately producing a drive connection between components of a planetary...
|
|
|
5577980 |
Shift flare control
Flare control is provided for downshifts in a computer controlled automatic transmission by providing an adaptive pressure term which is adjusted in response to detected flare conditions. During a...
|
|
|
5489248 |
Shift control system for automatic transmission
A shift control system for an automatic power transmission is capable of optimizing operation timing of a timing valve and whereby eliminate a shift-shock and occurrence of racing. The system...
|
|
|
5474508 |
Control system for automatic transmission
A control system for an automatic transmission includes a shift gear mechanism for shifting respective shift gear stages, a shift line map including upshift lines and downshift lines, and a device...
|
|
|
5473543 |
Shift timing detecting system for automatic transmission
A shift timing detecting system for detecting the start of a shift of an automatic transmission A in terms of a change in the R.P.M. of a predetermined rotary member after a shift command has been...
|
|
|
5460583 |
Gear shift control system for automatic transmission
An automatic transmission shift control system calibrates a locking speed, which is regulated by a regulating valve and at which locking of a specific frictional element is performed so as to shift...
|
|
|
5443427 |
Apparatus for controlling automatic transmission
An automatic transmission on an automobile has an input shaft, an output shaft, a plurality of power transmitting paths disposed between the input and output shafts for establishing respective gear...
|
|
|
5417627 |
Shift controller using shift timing or speed ratio dependent on the change of one way clutch for automotive automatic transmission
An automotive automatic transmission includes a one-way clutch and solenoids which, when switched in ON-OFF manner, induces a speed change of the transmission. The rotation speed ratio between...
|
|
|
5415606 |
Synchronous shift coordination responsive to an O/D switch in an automatic transmission
An electrohydraulic control system for an automatic transmission includes planetary gearsets, clutch and brakes that control the condition of the gear components, hydraulically actuated solenoid...
|
|
|
5411451 |
Control system for controlling the pressure of the oncoming servo hydraulic pressure based on a predicted time to sync from output shaft acceleration in automatic transmission
A control system is provided for servo hydraulic pressure in an automatic transmission. Upon downshifting, one of first and second frictional engagement devices is released while the other is...
|
|
|
5401219 |
Oil pressure control system for automatic transmission
An oil pressure control system for an automatic transmission for executing a downshift by disengaging a first frictional engagement element and engaging a second frictional engagement element. At a...
|
|
|
5351577 |
Control system for servo hydraulic pressure of two friction engaging means during an N-R shift in automatic transmission
A control system is provided for servo hydraulic pressure in an automatic transmission having planetary gear mechanisms. Shifting elements of the mechanisms can be connected to establish a...
|
|
|
5211079 |
Method of adaptive control for closed throttle downshift in an automatic transmission
In an automatic transmission, clutch-to-clutch closed throttle downshifting is controlled by filling the on-coming clutch at a maximum pressure command for a set period while commanding the...
|
|
|
5172611 |
Engine-rpm-dependent arrest device to prevent non-permitted down shifts in motor vehicle gearboxes
An engine-rpm-dependent arrest device to prevent non-permitted down shifts in motor vehicle transmissions containing a pilot valve (1) and a control valve (2), both having two shift positions. One...
|
|
|
5168449 |
Method of calculating torque for an electronic automatic transmission system
A method of calculating torque used in the initial percent on time of the solenoid-actuated valve for the release element such that when the speed change is complete, the actual acceleration...
|
|
|
5161432 |
Engine brake control system for automatic power transmission with variable response characteristics in shifting operational mode into engine braking range
An engine brake control system generally engages an overrun clutch in overall throttle valve open angle range at operational ranges for effecting engine brake. The control system is responsive to...
|
|
|
5113722 |
Timing control during downshift to engine braking range
A timing control for an overrunning clutch is disclosed. A revolution speed ratio of an input shaft revolution speed to an output shaft revolution speed is employed as a parameter reflecting the...
|