Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Rayon Company, Limited

Yukio Nishimoto

Satoru Inoue

Akiharu Fukuda

Toru Matsumoto

Naoki Miyamoto

Tomonori Kimura

Masahiro Sugimori

Masato Taguchi

Ryotaro Suzuki

Akira Agata

Daisuke Hara

Junya Tashiro

Kouji Ibata

Kazuya Gotou

Kazutada Yamauchi

An obstacle detection device includes one or more emitter ultrasonic sensors, each emitting an ultrasonic wave toward an obstacle, and one or more detection ultrasonic sensors for reception, each detecting a reflected wave from the obstacle. A control unit drives a specific one of the emitter ultrasonic sensors to cause it to emit an ultrasonic wave, stops the emission of the ultrasonic wave by the specific emitter ultrasonic sensor at the time that one of the detection ultrasonic sensors detects a reflected wave from the obstacle, and carries out detection of the obstacle and measurement of the distance to the obstacle from the time that the control unit stops the emission of the ultrasonic wave by the emitter ultrasonic sensor and the time that the reflected wave cannot be detected anymore.

Obstacle detection device

An ultrasonic sensor of the present invention is attached to the back face of a bumper, and provided with a matching memberthat is in intimate contact with the ultrasonic wave transmitting surface of the ultrasonic sensor and the opposing face of the bumperand that has an acoustic impedance smaller than each of the impedances of the sensor and the bumper.

Ultrasonic wave sensor and method for attaching ultrasonic wave sensor

An ultrasonic sensor module attaching device and attaching method include an ultrasonic sensor modulehaving a flangeof which the diameter is larger than the hole diameter of a through holeprepared through a bumperof a vehicle; and a fixing ring platehaving an engaging sectionwith the flange of the ultrasonic sensor module temporarily fixed on the back of the bumperand a large-diameter fixing sectionwhich extends circumferentially of the engaging section and is fixed to the back of the bumper; thus, the necessity for positioning the fixing ring plateto the holeof the bumperis eliminated, which can attach easily the ultrasonic sensor moduleto the back of the bumper.

Ultrasonic sensor module attaching device and attaching method

A moving obstacle deciding apparatus includes a search signal transmitting and receiving sectionfor transmitting a search signal, and for receiving the search signal reflected from a search target as a detection signal; a decision reference value calculating sectionfor calculating a decision reference value based on the detection signal received by the search signal transmitting and receiving section; and a moving obstacle deciding sectionfor making a decision as to whether the search target is a moving obstacle or not in accordance with a compared result of a difference value between decision reference values obtained by the decision reference value calculating sectionin time-series searches with a prescribed threshold.

Moving obstacle deciding apparatus and method

A sensor system has object detection sensorswhich are mounted on door mirrorsand have a parking space search mode for searching for an object within ranges extending laterally from a vehicleand a vehicle monitoring mode for searching for an object in rear lateral sides of the vehicleby folding and retracting the door mirrorsand a control sectionfor causing the object detection sensorsto be driven when the vehicletravels at a speed equal to or less than a prescribed value, and for making a search frequency of the object detection sensorshigher in the parking space search mode than in the vehicle monitoring mode.

Sensor system for vehicle

A cap is fit to a sensor case having a sensor-mounting hollow portion integrally formed therewith into which an ultrasonic sensor is fit. A plate spring is fit onto an outside of the sensor case to engage the plate spring with the cap. This plate spring integrally holds together both the sensor case and the cap. Having been constructed as above, the invention provides an easy integral assembly of a sensor case and a cap by means of a single plate spring and exhibits the ability for mounting and fixing the detector to a bumper or the like of a vehicle.

Ultrasonic obstacle detector and method of assembling the same

The present invention relates to an epoxy resin composition for FRP that will be used for fishing rods, golf club shafts, and the like, a prepreg that is an intermediate material made up of an epoxy resin composition combined with reinforcing fibers, and a tubular molded article obtained using it. The epoxy resin composition for FRP of the present invention comprises (A) a bisphenol A-type epoxy resin, (B) an epoxy resin having oxazolidone rings, and (C) a curing agent. By using the epoxy resin composition for FRP of the present invention, a prepreg quite excellent in handleability and a tubular molded article improved in flexural strength in the longitudinal direction and crushing strength in the diametrical direction can be obtained.

Epoxy resin composition for FRP, prepreg, and tubular molding produced therefrom

Extraneous matter such as snow or mud sticking to an ultrasonic sensor is detected. An obstacle ( ) reflects transmitted waves from an ultrasonic sensor ( ), and the indirect waves (k) are received by an ultrasonic sensor ( ), whereby the obstacle ( ) is detected. The ultrasonic sensor ( ) generates direct waves (t) directly received by the ultrasonic sensors ( ) and ( ), and therefore the ultrasonic sensors ( ) and ( ) are arranged to monitor also the direct waves (t). The direct waves (t) are attenuated when extraneous matter ( ) such as snow or mud sticks to the ultrasonic sensor ( ), and the presence of the extraneous matter is detected according to this attenuation.

Ultrasonic obstacle detector

A ultrasonic transceiver includes a case for housing a ultrasonic sensor having a transducer provided therein, and a resilient member to be interposed between the case and an ultrasonic sensor. The surface of the case opposing the side surface of the ultrasonic sensor is tapered with respect to the surface of the ultrasonic sensor without involvement of the resilient member.

Ultrasonic transceiver and vehicle's surrounding obstruction sensor

In the obstruction detection apparatus incorporated in a vehicle (11), ultrasonic wave transmitter/receiver (16 to 19 171) for changing a combination of transmitting of ultrasonic waves and of receiving of reflected ultrasonic waves, a CPU (20) calculates a distance between the vehicle (11) and an obstruction and stores data corresponding to the calculated distance into the distance table (23), and the LC display device (27) displays the obstruction on display bars of a lattice shape corresponding to the data stored in the distance table (23), and a buzzer (26) sounds an alarm for a driver.

Growing community of inventors

Tokyo, Japan

Yukio Nishimoto