Abstract: A first light on/off check portion 3 checks the on/off of a light depending on the brightness, and a second light on/off check portion 9 checks the on/off of the light depending on the rain. A light control portion 10, when the rain-dependent on/off check shows the turn-on of the light, turns on a head lamp to avoid the visibility difficulty caused by the rain and, when the rain-dependent on/off check shows the turn-off of the light, according to the result of the check of the brightness-dependent on/off of the light, controls the head lamp and small lamp. A running scene check portion 8 checks the states of the inside and outside of a tunnel, and the second light on/off check portion 9, when the rain-dependent on/off check shows the turn-on of the light, continues the turn-on of the light on/off check for a given time.

Abstract: First and second temperature check portions 7 and 8 determine whether an ambient temperature T1 is lower than 20° C. or not, whether an external surface temperature T2 of a windshield S is lower than 25° C. or not and whether a temperature difference (T2?T1) is lower than 20° C. or not, and a weather condition check portion 9 determines whether a condition that condensation occurs over the windshield S is met or not based on results of the checks. A wiper control portion 10 controls a driving operation of a wiper W based on a rainfall state checked by a low sensitivity rainfall check portion 5 when the condition that the condensation occurs is met, and controls the driving operation of the wiper W based on a rainfall state checked by a high sensitivity rainfall check portion 4 when a condition that the condensation does not occur is met.

Abstract: A wiper controller which detects the raindrops adhered onto the windshield glass G of the vehicle to control the wiper based on the detected result is provided with a wiped water measurement unit for calculating an amount of water wiped by the wiper, a wiper operation time counter for counting the actual wiper operation time based on the ON/OFF signal of the wiper motor for driving the wiper, a delay time calculation unit which obtains the wiper operation delay time by comparing the actual wiper operation time with the reference wiper operation time, and an operation change determination unit for determining with respect to the need for changing the wiper operation based on the wiper operation delay time and the amount of water wiped by the wiper. The change in the rainfall state is derived from the wiper operation delay time and the amount of water wiped by the wiper to appropriately control the wiper in response to the change in the rainfall state.

Abstract: First and second temperature check portions 7 and 8 determine whether an ambient temperature T1 is lower than 20° C. or not, whether an external surface temperature T2 of a windshield S is lower than 25° C. or not and whether a temperature difference (T2?T1) is lower than 20° C. or not, and a weather condition check portion 9 determines whether a condition that condensation occurs over the windshield S is met or not based on results of the checks. A wiper control portion 10 controls a driving operation of a wiper W based on a rainfall state checked by a low sensitivity rainfall check portion 5 when the condition that the condensation occurs is met, and controls the driving operation of the wiper W based on a rainfall state checked by a high sensitivity rainfall check portion 4 when a condition that the condensation does not occur is met.

Abstract: A first light on/off check portion 3 checks the on/off of a light depending on the brightness, and a second light on/off check portion 9 checks the on/off of the light depending on the rain. A light control portion 10, when the rain-dependent on/off check shows the turn-on of the light, turns on a head lamp to avoid the visibility difficulty caused by the rain and, when the rain-dependent on/off check shows the turn-off of the light, according to the result of the check of the brightness-dependent on/off of the light, controls the head lamp and small lamp. A running scene check portion 8 checks the states of the inside and outside of a tunnel, and the second light on/off check portion 9, when the rain-dependent on/off check shows the turn-on of the light, continues the turn-on of the light on/off check for a given time.

Abstract: A wiper controller which detects the raindrops adhered onto the windshield glass G of the vehicle to control the wiper based on the detected result is provided with a wiped water measurement unit for calculating an amount of water wiped by the wiper, a wiper operation time counter for counting the actual wiper operation time based on the ON/OFF signal of the wiper motor for driving the wiper, a delay time calculation unit which obtains the wiper operation delay time by comparing the actual wiper operation time with the reference wiper operation time, and an operation change determination unit for determining with respect to the need for changing the wiper operation based on the wiper operation delay time and the amount of water wiped by the wiper. The change in the rainfall state is derived from the wiper operation delay time and the amount of water wiped by the wiper to appropriately control the wiper in response to the change in the rainfall state.

Abstract: An imaging system according to the present invention is capable of outputting an image which is less unnatural while elongating a signal storage time of a CCD camera gradually. It includes an IR lamp for radiating an infrared ray, a CCD camera 5 for taking the place radiated by the IR lamp and converting it into an electric signal, and an image processing unit 7 capable of outputting an image with a different exposure value continuously and periodically, while varying a signal storage time of the CCD camera 5 at a predetermined period. The image processing unit 7 is characterized by outputting an image that is different in exposure depending upon a signal storage time according to the extent to which how strongly light strikes on the CCD camera 5, and elongating gradually the signal storage time when there is no strong light falling on CCD camera 5.

Abstract: An automatic transmission including an electric actuator, a shift operating unit, rotation position detecting means, a locating unit for locating a manual shaft, and a controlling unit for driving and controlling the actuator is constructed of an electric current detecting unit for detecting a driving current of the actuator, a shifting position calculating unit for calculating a shifting position of the manual shaft on the basis of detection by the electric current detecting unit of a change in the driving current of the actuator at the time when a detent pin gets over a convex to be fitted in a predetermined concave in shifting, and a rotation position detection learning unit for learning a relation between the shifting position calculated by the shifting position calculating unit and an output value of the rotation position detecting unit.

Abstract: An automatic transmission including an electric actuator, a shift operating unit, rotation position detecting means, a locating unit for locating a manual shaft, and a controlling unit for driving and controlling the actuator is constructed of an electric current detecting unit for detecting a driving current of the actuator, a shifting position calculating unit for calculating a shifting position of the manual shaft on the basis of detection by the electric current detecting unit of a change in the driving current of the actuator at the time when a detent pin gets over a convex to be fitted in a predetermined concave in shifting, and a rotation position detection learning unit for learning a relation between the shifting position calculated by the shifting position calculating unit and an output value of the rotation position detecting unit.