Matches 1 - 50 out of 106 1 2 3 >


Match Document Document Title
9028359 Multi-speed transmission with an engine start/stop enabler  
A transmission includes an input member, an output member, four planetary gear sets, and a plurality of torque transmitting mechanisms that are selectively engageable to establish at least ten...
8790207 Hydraulic control system of automatic transmission for hybrid vehicle  
A hydraulic control system of an automatic transmission for a hybrid vehicle provides for simplifying structure of a valve body and improving responsiveness as a consequence of directly...
8632433 Hydraulic control system for automatic transmission and control system for automatic transmission  
Provided is an automatic transmission hydraulic control system with a first friction engagement element engaged at a first forward gear and establishment of a reverse gear, and a second friction...
8528712 Auto transmission hydraulic pressure control apparatus  
An auto transmission hydraulic control apparatus may include six friction elements that of which two friction elements operate to achieve a corresponding to each stage by hydraulic pressure, five...
8522946 Hydraulic control device  
A hydraulic control device that controls a hydraulic pressure to be supplied to a hydraulic servo for a hydraulically driven friction engagement element in an automatic transmission that changes...
8435148 Hydraulic control system for an automatic transmission having electronic transmission range selection with failure mode control  
A hydraulic control system for a transmission includes a source of pressurized hydraulic fluid that communicates with an electronic transmission range selection (ETRS) subsystem. The ETRS...
8403791 Manual valve control for multi-speed planetary transmission  
A manual valve control for a multi-speed vehicle transmission is provided. Electronic and hydraulic components are provided, including trim valve systems that are multiplexed by a shift valve and...
8403790 Motor transmission apparatus  
A motor transmission apparatus is provided between a transmission output shaft coupled to a drive wheel and a motor shaft coupled to a motor/generator. The motor transmission apparatus includes a...
8210977 Hydraulic control device of automatic transmission  
A dual purpose pressure adjusting valve provides a hydraulic pressure upon failure of electric power supply and controls the hydraulic pressure selectively directed toward a high clutch and a low...
8206254 Manual valve control for multi-speed planetary transmission  
A manual valve control for a multi-speed vehicle transmission is provided. Electronic and hydraulic components are provided, including trim valve systems that are multiplexed by a shift valve and...
8182397 Hydraulic control apparatus for automatic transmission  
A hydraulic control apparatus for an automatic transmission includes a first solenoid valve, a second solenoid valve, a third solenoid valve, a preliminary shift speed switch valve, and an oil...
8172711 Hydraulic control apparatus of automatic transmission  
A hydraulic control apparatus of an automatic transmission having engagement pressure solenoid valves configured to regulate an engagement pressure supplied to a hydraulic servo of a frictional...
8070637 Manual valve control for multi-speed planetary transmission  
A manual valve control for a multi-speed vehicle transmission is provided. Electronic and hydraulic components are provided, including trim valve systems that are multiplexed by a shift valve and...
8070636 Electroyhydraulic control device of a gear unit  
An electrohydraulic control device (1) of an 8-speed transmission having several electrically controllable pressure control valves (6-12) for hydraulically actuating five switching elements (A-E)...
RE42131 Fly-by-wire limp home and multi-plex system  
An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by...
7846053 Hydraulic control system of eight-speed automatic transmission for a vehicle  
A hydraulic control system of an eight-speed automatic transmission for a vehicle. Four clutches and two brakes can by independently controlled by six proportional control solenoid valves by...
7811192 Hydraulic control system of eight-speed automatic transmission for a vehicle  
A hydraulic control system of an eight-speed automatic transmission for a vehicle. Four clutches and two brakes can by independently controlled by six proportional control solenoid valves by...
7794349 Gear control device  
An automatic transmission control device with a hydraulic control system controlled by an electric transmission control device. The system including several pressure control valves, actuated...
7749122 Automatic transmission  
An automatic transmission includes a planetary gear arrangement, and a plurality of engaging elements each arranged to vary an engagement state among the rotating elements of the planetary gear...
7703478 Shifting unit  
In a shifting unit (1) for a vehicle transmission gearbox, the switching unit comprising valves which are connected between with one another by a pressure supply line conduit (58) and by a...
7695388 Activation control device for the clutch packs of a hydraulic double clutch  
An activation control device for clutch packs of a hydraulic double clutch is described and illustrated, and in some embodiments comprises a first pressure line having a filling valve and leading...
7682275 Automatic transmission control apparatus  
An automatic transmission control apparatus is provided with a shift control section, a first rotary-speed detecting section, a second rotary-speed detecting section and an input shaft speed...
7648440 Method and apparatus to control operation of an electro-mechanical transmission  
A method and apparatus are provided to control operation of an electro-mechanical torque transmission device selectively operative in one of a plurality of fixed gear modes and two continuously...
7611434 Hydraulic controlling apparatus for automatic transmission for vehicle  
The fail-safe gear step switching valve (120) can be switched to the first position to establish the low-speed side fail-safe gear step (third speed-change gear step) or the second position to...
7481734 Hydraulic control apparatus and hydraulic control method of vehicular automatic transmission  
A hydraulic control apparatus of a vehicular automatic transmission has a plurality of hydraulic friction engagement devices that are selectively engaged and released to establish a plurality of...
7344466 Hydraulic control system of 7-speed automatic transmission for vehicle  
A hydraulic control system of a seven-speed automatic transmission that provides enhanced overall performance by achieving precise and effective control by providing a fail-safe function in at...
7322899 Electro-hydraulic control system for an electrically variable hybrid transmission  
A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms...
7320657 Vehicle automatic transmission control apparatus with fail-safe arrangement  
A control apparatus for controlling a vehicle automatic transmission including (i) a first coupling device to be engaged for establishing an emergency gear position and (ii) a second coupling...
7300375 Hydraulic circuit for the control of a drive train  
A hydraulic circuit for the control of a double clutch transmission which has two transmission groups, each with an isolating clutch and with a plurality of shift clutches for the engagement and...
7261662 Hydraulic control apparatus for automatic transmission of vehicle  
A hydraulic control apparatus for use with a vehicle's automatic transmission, the apparatus including a fail-safe switch valve which has an escape-related output port connected to a drain port of...
7244209 Hydraulic control device for automatic transmission  
A hydraulic control apparatus for an automatic transmission including two frictional coupling devices of a first group and a plurality of frictional coupling devices of a second group, the control...
7140993 Fly-by-wire limp home and multi-plex system  
An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by...
7128676 Failsafe hydraulic circuit  
A failsafe hydraulic circuit designed to avoid simultaneous engagement of two friction engagement elements (e.g., clutches, brakes, etc.) incorporated in a speed change apparatus of a motor...
7104910 Hydraulic control apparatus for hydraulically operated mechanical apparatus  
A hydraulic control apparatus for switching an operation of a hydraulically operated mechanical apparatus, by selectively operating two frictional engagement elements of a first, a second, a...
6986724 Hydraulic control system of a six-speed automatic transmission for a vehicle  
The six-speed automatic transmission includes five frictional elements and is efficiently controlled by a minimal number of spool valves and solenoid valves. Drivability is, thereby enhanced and...
6966862 Shift control system of automatic transmission  
In a case of an electric failure caused to a traveling vehicle and when any of forward gears is held at a step S5, a comparison is made between: 1) a supposedly-engaged friction element of...
6942591 Hydraulic control system of a six-speed automatic transmission  
Each control portion for controlling each friction element includes a switch valve and pressure control valve such that hydraulic pressure supplied to the friction element is fully controlled, and...
6866611 Vehicle range shift mechanism  
A judging section judges whether or not ranges detected, respectively, by a first range detection section consisting of a first detection section and a position detecting sensor, and a second...
6860830 Hydraulic control device for automatic transmission  
There is provided a hydraulic control device for an automatic transmission, which is comprised of an engagement state determining section and a protection control section. If the engagement state...
6840885 Six-speed powertrain and hydraulic control system for automatic transmission  
The powertrain of a six-speed powertrain and a hydraulic control system includes a main shift section of first and second single pinion planetary gearsets, in which a first planet carrier is...
6835152 Automatic transmission with a hydraulic control apparatus  
An automatic transmission and method including a plurality of hydraulic servos which respectively engage and disengage a plurality of frictional engagement elements, a first solenoid valve for...
6805649 Hydraulic control system for automatic transmission  
A hydraulic control system, in which a powertrain of a 5-speed automatic transmission is controlled using five clutches and three brakes such that fuel consumption is reduced and engine torque is...
6780131 Hydraulic control apparatus for automatic transmission  
To prevent the neutral state from being formed in a change gear apparatus and allow the obtaining of an intended gear change appropriately during a servo malfunction. Hydraulic servos engage and...
6746355 Hydraulic control system for automatic transmission  
A hydraulic control system for an automatic transmission, in which four forward speeds and one reverse speed are realized by the use of a reduced number of friction elements compared to the prior...
6712725 Hydraulic control apparatus of an automatic transmission  
A hydraulic control apparatus for an automatic transmission having a plurality of transmission gear trains. The hydraulic control apparatus performs a gear shift operation by a select actuator and...
6659899 Electrohydraulic control system for controlling gearspeed changes in partially or fully automatic transmissions of vehicles  
A control unit has a signal input from at least one sensor and a signal output for electrically actuating at least one valve in order to hydraulically activate a gear-changing element. An...
6634991 Hydraulic control unit for automatic transmission  
A hydraulic control unit including a hydraulic servo for engaging and disengaging each friction engagement element, hydraulic pressure supply device for supplying hydraulic pressure to a hydraulic...
6609991 Hydraulic control system for automatic transmission  
A hydraulic control system in which hydraulic pressure generated pressure generated by an oil pump is supplied to a pressure/damper clutch controller, a pressure reducer, and a shift controller,...
6585617 Electro-hydraulic control system for a multi-speed power transmission  
A powertrain has an electro-hydraulic control mechanism that provides for the establishment of six forward speeds, a neutral condition and a reverse speed. The control system also permits...
6569050 Hydraulic control apparatus for an automatic transmission  
A hydraulic control apparatus for an automatic transmission including a hydraulic pressure source, hydraulic paths, hydraulic servos for operating friction elements which are coupled with the...

Matches 1 - 50 out of 106 1 2 3 >