| Patent Number |
Title Of Patent |
Date Issued |
| 4957195 |
Hydraulic device for an automatic transmission |
September 18, 1990 |
| A centrifugal hydraulic pressure cancel chamber is arranged at the back of a second piston member of a second hydraulic actuator for the second clutch. A first piston member of a first hydraulic actuator for a first clutch is situated behind the second piston. A centrifugal hydraulic |
| 4954959 |
Navigation system |
September 4, 1990 |
| A first external storage device which may be a CD stores data representing standard map of a particular area and that required for guidance, and a second external storage device which may be an IC card stores individual data which cannot be complemented by said data representing the stan |
| 4947123 |
Battery state monitoring apparatus |
August 7, 1990 |
| A battery state monitoring apparatus determines the remaining life of a battery, which is used by being repeatedly charged and discharged, upon taking into account the charging/discharging characteristic of the battery and the surrounding temperature, thereby making it possible to ascert |
| 4946424 |
Belt driven continuously variable transmission |
August 7, 1990 |
| This invention relates to a belt driven continuously variable transmission having a pressure regulating cam mechanism giving a pulley an axial force which corresponds to transmission torque and eliminates torque transmission by friction between a pressure regulating cam and a fixed r |
| 4943925 |
Navigation apparatus based on present position calculating system |
July 24, 1990 |
| A navigation apparatus having road system data 6 which represents information of connections and coordinates of intersections and roads between intersections, a travel distance sensor 2, steering angle sensor 3, a present position calculating module 4 for calculating the present posi |
| 4939662 |
Navigation apparatus |
July 3, 1990 |
| A navigation apparatus for navigating a vehicle in accordance with a preset course while measuring distance travelled and steering angle is characterized by presetting distance information for guidance along the course, and outputting guidance relating to the pertinent distance infor |
| 4937753 |
Route end node series preparing system of navigation apparatus |
June 26, 1990 |
| Disclosed is a system for preparing a route end node series which is equipped with a route search means 7 for preparing a node series, an intersection series or a combination of both as the data series for navigation, and a route end node series preparing means 3 for preparing the no |
| 4937752 |
An apparatus for correcting distance error in a navigation system |
June 26, 1990 |
| In a navigation system, during navigation between guidance intersections A and B, a next named intersection C is displayed along with the distance remaining until the named intersection B is reached. After the vehicle has entered the distance error correction range, illumination color of |
| 4937751 |
Navigation apparatus |
June 26, 1990 |
| A navigation apparatus for navigating an automotive vehicle in accordance with a preset course while measuring distance travelled and steering angle is characterized by previously storing positions of charactering features along the course and guidance information relating to said charac |
| 4934218 |
Hydraulic control device for an automatic transmission |
June 19, 1990 |
| A hydraulic control device which has a check valve controlling hydraulic pressure to a hydraulic actuator. Hydraulic pressure is selectively supplied to one of plural oil passages having different capacity orifices by a switching valve which switches high speed rotation mode and low spee |
| 4926336 |
Route searching system of navigation apparatus |
May 15, 1990 |
| A route searching system having node data 3 representing information on positions and attributes of the same, intersection data 1 representing information on intersections, road data 2 representing information on roads, and a route searching section 4 for searching for the optimum route |
| 4924731 |
Hydraulic control device for an automatic transmission |
May 15, 1990 |
| An orifice is installed on an oil passage to a hydraulic servo for a direct clutch. In forward high speed running, a line pressure from the D range port of a manual valve is supplied to the hydraulic servo through an oil passage used for forward high speed running and a three way cock (n |
| 4911000 |
Rotation detecting device of an automatic transmission |
March 27, 1990 |
| A rotation detecting sensor is situated on the inside of a sleeve, so that the sensor detects a detected member, such as an input shaft and the like for an automatic transmission, from the inside of the sleeve. A hub projected toward inside a case is constituted, a sleeve enclosing the h |
| 4909776 |
Continuously variable transmission |
March 20, 1990 |
| One of bolt section or a nut section on a ball screw devices, or nut sections (for example) are connected to gear sections axially movable, while the bolt sections are connected to a stationary element, so that relative rotation is given to the bolt section and the nut section to adj |
| 4909345 |
Power transmission device for four wheel drive vehicles |
March 20, 1990 |
| A power transmission device for four wheel drive vehicle includes a differential motion limiting device, for limiting differential motion of a center differential device, which is made up by a wet-type frictional clutch and a hydraulic actuator. Under running condition, the frictional |
| 4908255 |
Separate plate and process for producing the same |
March 13, 1990 |
| A separate plate for use in a valve body of an automatic transmission has a gasket bonded to each side of the separate plate. The gasket is provided with boxes which are different in configuration from bores provided in the separate plate. Bores are punched out in the separate plate and |
| 4903798 |
Hydraulic apparatus for an automatic transmission |
February 27, 1990 |
| An intake adapter is provided on an oil intake opening formed in a transaxle casing. A tightly sealed space in communication with an oil pump is provided in the lower part of the transaxle housing, formed in such a manner that it can be opened by the removal of a cover member which is |
| 4903548 |
Snap ring support device for an automatic transmission |
February 27, 1990 |
| In an automatic transmission provided with an automatic transmission mechanism section with a planetary gear unit and a torque converter, a snap ring groove is defined by an annular flange section for a stator shaft and a pump cover, and the reaction from a return spring is borne in |
| 4889621 |
Oil strainer for an automatic transmission |
December 26, 1989 |
| A thick-walled, narrow-width oil strainer positioned in a space formed between the contact surfaces of the transaxle casing and transaxle housing of an automatic transmission is disclosed. Both the upper body and lower bodies of the oil strainer are constructed with an angled cross secti |
| 4882696 |
Navigation apparatus |
November 21, 1989 |
| A navigation apparatus for navigating a vehicle in accordance with a preset course while measuring distance travelled and steering angle has voice track indication means in which voice track indications corresponding to the distance remaining to an intersection at which the next turn is |
| 4875665 |
Accumulator |
October 24, 1989 |
| In an accumulator including a piston which slides freely in a cylinder and a spring which presses the piston, a hole of the piston end where, at the bottom, a large diameter section is made, and small diameter section whose diameter is smaller than that of the large diameter section is l |
| 4864892 |
Automatic transmission mechanism |
September 12, 1989 |
| In an automatic transmission mechanism for an automatic transmission mounted on automobiles having two planetary gears, a one-way clutch functioning in shifting up and down between third and fourth speed is laid, and a fourth clutch is laid between the one-way clutch and an input mem |
| 4838517 |
Pressure control valve |
June 13, 1989 |
| A pressure control valve includes pressure modulating section and a magnetic section. The magnetic section has a cylindrical case, a coil assembly, a cylindrical core, a rod and a plunger. Outer limbs of a disc type supporting members which are made of a leaf spring member are fixed |
| 4838313 |
Solenoid-operated pressure control valve |
June 13, 1989 |
| In a solenoid-operated pressure control valve having a pressure modulating section and a magnetic section, the pressure modulating section includes a valve sleeve having an application port, an output port, a feedback port having throttle passage, and a drain port, and a spool being mova |
