Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Shinichi Harase

Satoru Inoue

Toshiyuki Yamashita

Wataru Tsujita

Yoshitsugu Sawa

Ryotaro Suzuki

Tsutomu Asahina

Takashi Furui

Takashi Tokunaga

Tohru Matsumoto

Yukihiro Okimoto

Yuji Hiraoka

A parking assistance device includes a pair of left and right sonar devices provided in a vehicle, an obstacle detection controller for determining whether an obstacle present within a determination target distance range on a side of the vehicle is a wall or a curb by comparing a level value of a reflection wave received by one of the sonar devices with each of a first threshold value and a second threshold value that are different from each other, and an automatic parking controller for setting a guiding route for automatic parking depending on a determination result, and the automatic parking controller sets the guiding route requiring a large amount of steering of the vehicle in a case where the determination result indicates a curb, compared with a case where the determination result indicates a wall in the automatic parking in the form of parallel parking.

Parking assistance device

A parking assistance device includes: distance sensors for transmitting detection waves toward a side of a host vehicle while the host vehicle is traveling and receiving reflected waves of the detection waves; a reflection point calculating unit for calculating reflection points indicating positions where the detection waves have been reflected; a grouping unit for grouping the reflection points; a reference distance setting unit for setting a reference distance corresponding to a distance between a host vehicle position indicating the position of the traveling host vehicle and a reflection point group set by grouping; and an object determining unit for setting an object determining threshold value to be compared with the reference distance and determining whether an object corresponding to the reflection point group is a parked vehicle or a parking reference object by comparing the reference distance with the object determining threshold value.

A parking assistance device () is provided with distance sensors (FL,FR,RL,RR) which transmit detection waves laterally with respect to a host vehicle () while the host vehicle () travels and receive reflected waves of the detection waves, a reflection point calculating unit () which calculates a reflection point indicating a position where the detection wave is reflected, a grouping unit () which groups the reflection points, a parking space pitch calculating unit () which calculates a parking space pitch indicating a width of each parking space by using periodicity of a shape of a reflection point group set by grouping, a parking target area setting unit () which sets a parking target area which is a target of perpendicular parking by the host vehicle (), and a parking assistance controlling unit () which guides the host vehicle () to the parking target area on the basis of the parking space pitch.

An activation apparatus for an occupant protection system includes acceleration sensors which are disposed on the respective right and left sides of a vehicle with respect to the center of the vehicle on the vehicle and each of which is provided for detecting the acceleration from the side opposite to the side where the sensor is disposed, and includes a determiner that determines whether or not an occupant protection system is to be activated by comparing the physical quantity computed based on the value detected and outputted by the acceleration sensor with a threshold for activating the occupant protection system.

Activation apparatus for occupant protection system

A rollover judging device adjusts the magnitude of an angular velocity component &#x3c9; of a vehicle in a direction of a rollover, which is measured by an angular velocity sensor, by using an &#x3c9; adjusting uniton the basis of an acceleration component of the vehicle in its rightward or leftward direction or in its upward or downward direction, which is measured by an acceleration sensor, calculates an angle component &#x3b8;o by integrating with respect to time this adjusted angular velocity component &#x3c9;o by using an integrator, carries out predetermined multiplication and addition processes by using a judging meanson the basis of this angle component &#x3b8;o and the measured angular velocity component &#x3c9;, and, when the result of this addition process exceeds a preset threshold Th, outputs a signal indicating judgment of occurrence of a rollover to an air bag control device

Rollover judging device

An airbag control apparatus has an acceleration detecting sectionfor detecting acceleration in the longitudinal direction and lateral direction of a vehicle; a collision decision sectionfor making a decision about a frontal collision and side-impact collision of the vehicle in response to the detection outputs of the acceleration detecting section; and a driving sectionfor inflating airbagsmounted in the front or sides of the vehicle in response to the decision output of the collision decision section. The collision decision section suppresses the decision about the side-impact collision in accordance with collision information in the longitudinal direction of the vehicle contained in the detection outputs of the acceleration detecting section.

Airbag control apparatus

An acceleration sensor unit including a board on which an acceleration sensor is mounted, a support part for supporting the board, and a housing in which the support part and the acceleration sensor are contained, the board is installed in the housing by means of the support part so as to swing with respect to the housing.

Growing community of inventors

Tokyo, Japan

Shinichi Harase