Abstract: A structure configuration map display system includes a controller for depicting and displaying a structure configuration map based on structure configuration map information. The system provides for searching and guidance relative to a structure designated as a target point. A display form corresponding to the structure information for the target point is determined and the display form of the target point is changed based on the results of that determination and is displayed so that a user can easily recognize the desired facility by its display form which corresponds to stored structure information. Also, the user can easily identify a facility as the desired facility and can obtain reliable guidance to that target point by the display form which indicates the type of the structure.

Abstract: Upon recognizing the shapes of buildings or facilities, the buildings or facilities can be identified and destinations can be designated simply and easily. The display of a house map and a road map is changed over depending upon predetermined conditions. This makes it easy to navigate to the destination. When the destination is shown on the house map, a guide route is identified on a road adjacent to the building at the destination. This makes it easy to see where in the vicinity of the destination the car arrives.

Abstract: According to the invention, when a target name is inputted using characters such as alphabet and numerics, strings of characters or numerics are compared with data of registered places each time one character is inputted, names of registered places including the inputted string of characters or numerics is listed, and the number of registered target names remaining on the list is displayed.When the target name is inputted in characters, the inputted data is compared with a list of the registered names having word components arranged in different orders with respect to a single official name by a forward match comparison, and the number of registered target names remaining on the list with forward match is displayed.When the number of the inputted characters or numerics increases and the number of registered target names remaining on the list decreases, a list of the registered place names is displayed. The target name is selected from this list.

Abstract: A vehicle navigation system includes a simulated run mode along with a normal navigation mode. In the simulated run mode, a simulated present position is calculated to move in accordance with simulated motion so that route guidance information is presented to the viewer in the same manner as during actual navigation. The simulated motion may be increased or decreased, may be stepped or continuous, and/or may be controlled in accordance with stored speed information on the roads of the route.

Abstract: A navigation system includes a first information storage device containing stored map data and a display unit for displaying a map by reading the map data. Provision is made for setting a point on the map displayed by the display unit and for inputting a telephone number. A second information storage device is provided for registering the input telephone number in correlation with the positional coordinates of the set point.

Abstract: A vehicle navigation system includes a simulated run mode along with a normal navigation mode. In the simulated run mode, a simulated present position is calculated to move in accordance with simulated motion so that route guidance information is presented to the viewer in the same manner as during actual navigation. The simulated motion may be increased or decreased, may be stepped or continuous, and/or may be controlled in accordance with stored speed information on the roads of the route.

Abstract: A navigation system includes a first information storage device containing stored map data and a display unit for displaying a map by reading the map data. Provision is made for setting a point on the map displayed by the display unit and for inputting a telephone number. A second information storage device is provided for registering the input telephone number in correlation with the positional coordinates of the set point.

Abstract: In an electronic control type automatic speed changer equipped with a linear solenoid for controlling the oil pressure of the automatic speed changer, when potential difference is generated between the power ground (PE) and the signal ground (SE), the line pressure of the automatic speed changer does not coincide with the predetermined set value due to erroneous signals generated. In order to compensate for the potential difference between PE and SE, according to the present invention, a PE -SE potential difference compensator is provided in series between a current monitor device and PE, and a solenoid monitor circuit is provided for monitoring the potential of the connection point of the current monitor device and the PE-SE potential difference compensator. Thus even if there is a potential difference between PE and SE, a potential difference proportional to the current actually flowing in the linear solenoid can be detected.

Abstract: A solenoid driving circuit for an automatic transmission in which a potential difference compensating device, such as a Darlington-connected transistor circuit, switching transistor, and/or diode, is connected between a resistance element and a power ground, and a controlling device monitors voltage values at opposite sides of the resistor element so as to detect a current value flowing across a solenoid. The controlling device determines whether the detected value of the current flowing across the solenoid is abnormal, and the controlling device shuts off the current of a solenoid driving device when it is abnormal. The potential difference compensating device is provided with a switching device, and the controlling device turns off the switching device when the monitoring current value is abnormal.

Abstract: An electronically controlled automatic transmission installed on a vehicle. This transmission comprises a throttle body, a main throttle valve mounted in the throttle body, a subsidiary throttle valve connected in series with the main throttle valve, a traction control module connected with wheel rotation sensors, an engine control module receiving the output signals from the main and subsidiary throttle sensors, a transmission control module, and an automatic transmission. If the wheels skid, it is detected by the traction control module. The output signal from the traction control module causes the engine control module to reduce the engine torque. The transmission control module responds to the output signal from the traction control module and to the engine control module, and changes the line pressure. When the traction control module is operating, the transmission control module changes the line pressure by a predetermined value.

Abstract: Herein disclosed is an automatic transmission of electronic control type, which has hydraulic control for improving the shift feel of the automatic transmission. This automatic transmission includes an oil pressure source; a line pressure regulating valve for regulating the output oil pressure of the oil pressure a source to a line pressure; line pressure controller for sending an oil pressure signal for changing the line pressure to the line pressure regulating valve in response to an electric signal; an r.p.m. sensor for detecting the start and end of a shift; and an electronic controller for changing the electric signal to the line pressure controller stepwise in an open loop in a manner to correspond to the divisions of the shift which include at least starting, ending and intermediate stages.

Abstract: To prevent wheel spinning in reverse gear on a slippery road surface the electronic control system of the present invention transmits signals representing the states of a reverse range detecting switch and a winter mode switch to a microcomputer, and output signals from the microcomputer are transmitted to an engine control computer which in turn, sends ignition period delay angle signals to the spark timing controller, and the output torque of the engine is thereby reduced. When the output torque of the engine is reduced, the driving power to the wheels is decreased and slippage is reduced in reverse start on a low coefficent of fuction .mu. path.

Abstract: In an electronic controller for an automatic transmission having at least one driving circuit incorporating a switching device for driving a solenoid used as an actuator, at least one monitor circuit for detecting an abnormal state of the actuator, and a control section connected to these circuits, an emergency power cutoff circuit is provided between the solenoid driving circuit and the positive terminal of a battery (solenoid driving power source). The switching operation of the emergency power cutoff circuit is freely controlled to effect fail-safe control on the basis of a signal which is output from a microcomputer if, for example, the switching device in the controller malfunctions by short-circuiting.

Abstract: In a system for controlling a vehicle by exchanging signals between an electronic controller for controlling a vehicle transmission and another electronic controller for controlling a vehicle engine, the transmission controller incorporates a monitor circuit which receives, via an interface circuit of the engine controller, a signal output from the transmission controller through a communication circuit, and which is capable of detecting abnormalities of the interface circuit of the engine controller. If an abnormality of the interface circuit of the engine controller takes place such that the engine torque cannot be reduced although the transmission controller issues an instruction to reduce the engine torque, the transmission controller maintains the line pressure instead of reducing the same to cope with such a situation, thus effecting fail-safe control.

Abstract: A fail-safe control device for an electronically controlled automatic transmission mounted on a vehicle is provided with a sensor for sensing the number of revolutions input to the transmission and a sensor for sensing the number of revolutions output from the transmission or from a car speed sensor. The actual gear ratio of the transmission is calculated in accordance with the number of revolutions input to the transmission and the number of revolutions output from the transmission or from the car speed sensor each obtained from said sensors. The time taken for changing the actual gear ratio at the time of shift initiation to the fixed gear ratio after the shift is measured. A predetermined shift time which has been stored is compared with the thus-measured time for the purpose of detecting a failure of the transmission.

Abstract: A lamp output protective circuit for an electronic controller having a first npn transistor connected to an output terminal through which a lamp is supplied with electric power, a resistor connected between the emitter of said first npn transistor and the ground, and a second npn transistor having its collector connected to the base of the first npn transistor, its emitter to the ground and its base to a point between the emitter of the first npn transistor and the resistor. The base of the first npn transistor and the collector of the second npn transistor are connected to a signal line of the electronic controller connected to a power source.

Abstract: In a fail-safe control device for an electronically controlled automatic transmission to be mounted on a vehicle, a sensor for the number of revolution input to a T/M is newly provided for the electronically controlled automatic transmission, and an actual gear ratio of the T/M is calculated in accordance with the number of revolution input to the T/M and the number of revolution output from the T/M or the car speed. If the calculated actual gear ratio is coincided with the formal gear ratio, it is determined that the state is normal, while if they are not coincided with each other, it is determined that the T/M is in a failure state. As a result of this, failure detection of the T/M is performed. Therefore, in a case when the T/M is in a failure state, a driver can take a measure, for exmple, by performing an emergency control. Furthermore, the occurrence of the failure can be displayed by a detected failure displaying device so that the driver can take a measure such as a repair.

Abstract: A fail-safe control device for an electronically controlled automatic transmission to be mounted on a vehicle arranged in such a manner that the number of engine revolution or the number of revolution input to a T/M is detected, the duration of the engine revolving state is counted, and it is determined that a failure of the engine water temperature sensor occurs if the engine water temperature detected by the engine water temperature sensor after a predetermined time elapse counted is lower than a predetermined temperature. As a result of this, a proper fail-safe control against the failure of the engine water temperature sensor can be performed.

Abstract: If a driver wishes to start off an automotive vehicle in second or third gear when the vehicle is at rest on a road surface having a low coefficient of friction, as is the case when a road surface is covered with snow, the driver operates a winter mode selection switch while the transmission is in the speed range in which the vehicle ordinarily travels, i.e. the D range. After the vehicle has started off in the higher gear following use of the switch, the transmission switches over to the ordinary travel mode automatically as vehicle velocity rises. In a case where the engine is turned off and then restarted, the transmission switches over to the ordinary travel mode automatically. This eliminates any inconvenience that might be caused by forgetting to operate the switch prior to the restarting of the engine.

Abstract: A fail-safe control device for an electronically controlled automatic transmission to be mounted on a vehicle, the fail-safe control device: detects the battery voltage; previously stores a standard battery voltage; makes a comparison between the thus-detected battery voltage and the above-described standard battery voltage; and switches to an emergency mode of turning off all of shift solenoids when the voltage deviates from the standard upon the comparison. As a result of this, generation of defects that shifting from high speed gear stage to a lower speed gear stage due to defective operation of the shift solenoid and disconnection or the like due to the overvoltage of the solenoid can be prevented. Furthermore, if a failure is detected, it can be notified to a drive.