Mitsubishi Electric Corporation

Mitsubishi Electric Research Laboratories, Inc.

Mitsubishi Electric Cornoration

Mitsubishi Electric Corpotation

Wataru Tsujita

Yoshitsugu Sawa

Tomoaki Takewa

Kenzo Makino

Kenji Inomata

Seiya Nagashima

Takashi Ohsawa

Satoru Inoue

Masashi Asuka

Ryotaro Suzuki

Tsutomu Asahina

Daisuke Koshino

Kazuhiro Tahara

Kota Sadamoto

Tatsuo Fujimoto

Masahiro Shikai

Junji Hori

Tatsuji Irie

Tadashi Yamamoto

Shinichi Harase

Nobuyoshi Tomomatsu

Taiga Tanaka

Philip Orlik

Masahiro Watanabe

Bingnan Wang

Pu Wang

Takao Fukunaga

Kenji Kataoka

Takuma Kusagaki

Masaya Inoue

Hiroshi Araki

Hajime Nakajima

Hideaki Arita

Shintaro Watanabe

Toshiyuki Yamashita

Takahiko Ito

Masahiro Ishikawa

Yoshio Sato

Atsushi Takami

Koki Yoshimoto

Takafumi Nagano

Takaya Katsuragi

Katsunori Tsuchida

Mitsuaki Akaza

Hiroshi Taguchi

Atsuhisa Nakanishi

Takashi Osawa

Shoichi Shimizu

Mitsuaki Okada

The objective is to improve driving feeling at a time of acceleration operation or deceleration operation, by recognizing driver's intention of acceleration or deceleration during straight-ahead running. A driving-assistance control apparatus according to the present disclosure includes

Driving-assistance control apparatus

The posture of the driver is detected from the driver head portion, and the detected value and the driver mounting determination value are used to determine that the driver is pushing the vehicle and obtain the vehicle pushing command value. Converts the vehicle pushing command value to the target vehicle pushing assistance vesicle speed, determines whether vehicle pushing assistance can be performed based on the driver's posture and the vehicle condition, and outputs the vehicle pushing assistance permission determination. Then, from the target vehicle pushing assistance vehicle speed and the vehicle pushing assistance permission determination, the control amount for the vehicle power source that assists the vehicle pushing is calculated and output.

Driving support device

A rail breakage detection device includes a first core part provided to a first cable connecting an electrical neutral point of an impedance bond that electrically connects a first rail and a second rail to the first rail, a second core part provided to a second cable connecting the electrical neutral point of the impedance bond to the second rail, a first coil wound around the first core part to generate a first electromotive force in accordance with a current variation occurring in the first cable, a second coil connected electrically to the first coil and wound around the second core part to generate a second electromotive force in accordance with a current variation occurring in the second cable, and a CPU to determine that the first or second rail is broken based on an electromotive force that is a sum of the first and second electromotive forces.

Rail breakage detection device and rail breakage result management system

Provided are a driver posture measurement device and a vehicle control device that can accurately measure the posture of a driver with a simple configuration without attaching a plurality of wireless communication units to a vehicle. The driver posture measurement device and the vehicle control device are configured such that, between one wireless communication unit provided on the vehicle side and one wireless communication unit provided on the driver side, radio waves are radiated from the wireless communication unit provided on the vehicle side, and on the basis of a radio wave arrival angle of the radio waves arriving at the wireless communication unit provided on the driver side, the driver posture is measured.

Driver posture measurement device and vehicle control device

A movement-distance measuring apparatus is provided with: an antenna, a phase detection circuit, a phase-shift calculation circuit, and a movement-distance calculation circuit. The antenna transmits a radio wave toward a plurality of reflectors arranged at constant intervals along a moving path of a moving object, and receives a reflected wave from the reflectors. The phase detection circuit detects a phase of the reflected wave received by the antenna. The phase-shift calculation circuit calculates a phase shift based on the phase detected by the phase detection circuit. The movement-distance calculation circuit calculates a movement distance of the moving object, based on the phase shift calculated by the phase-shift calculation circuit, and based on the interval of the reflectors.

Movement-distance measurement apparatus capable of reducing error due to change in angle of maximum reflection intensity according to movement and reducing error due to misalignment of antenna

A rail break detection device to which an output waveform from a vibration sensor, which is a first vibration sensor, and an output waveform from a vibration sensor, which is a second vibration sensor, are input, the vibration sensors being mounted on different positions of rails, includes a waveform similarity determination unit to compare impulse waveforms separated from the output waveforms or compare continuous waveforms separated from the output waveforms, and determine similarity therebetween, and detects a break of a rail.

Rail break detection device

A temperature detection device includes: a detection processing unit configured to transmit a transmission radio wave, simultaneously receive a response radio wave corresponding to the transmission radio wave, and detect whether a temperature of an object to be measured is normal or abnormal based on the response radio wave; and a temperature sensing unit configured to receive the transmission radio wave and transmit the response radio wave responding to the transmission radio wave. The detection processing unit calculates, from the response radio wave received via a second antenna, an amplitude, a phase, or a quadrature phase amplitude of the response radio wave and compares the temperature of the object to be measured to a temperature determined in advance based on a result of the calculation.

Temperature detection device and temperature detection method

A purpose of the invention is to provide a rail breakage detection device mountable also on a vehicle. The invention is directed to a rail breakage detection device that receives: transmission-device state information indicating whether a rail signal transmission device that sends a rail signal is normal; reception-device state information indicating whether a rail signal reception device that receives a voltage induced by the rail signal is normal; and reception state information indicating whether a voltage induced by the rail signal reception device is received, and the rail breakage detection device performs rail breakage detection on the basis of the transmission-device state information, the reception-device state information, and the reception state information.

Rail breakage detection device and rail breakage detection system

Provided are: an inclination angle calculating unit for calculating, when having determined that a vehicle is stationary by referring to vehicle information indicating a traveling state of the vehicle, an inclination angle of the vehicle during a stationary period using inclination angle information indicating an inclination angle of the vehicle and determining a vehicle inclination angle during the stationary period from the calculated inclination angle of the vehicle; and a correction determination processing unit for determining whether an absolute value of a difference between the determined vehicle inclination angle and a reference angle determined previously by the inclination angle calculating unit is less than a first threshold value (threshold value &#x3b1;) and, if the absolute value of the difference is less than the first threshold value (threshold value &#x3b1;), performing a correction to rewrite the vehicle inclination angle to the reference angle.

Inclination angle detection apparatus and auto levelizer

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.

An optical axis control apparatus includes: an optical axis controlling unit for calculating, during stop of the vehicle, a pitch angle using an acceleration sensor provided in a vehicle and controlling, using the pitch angle, optical axis angles of headlights provided in the vehicle; and a rolling motion determination unit for determining, when the vehicle has started traveling, whether there has been a rolling motion during the stop of the vehicle. When the pitch angle has been changed during the stop of the vehicle and the rolling motion determination unit determines that the rolling motion exists, the optical axis controlling unit corrects, when the vehicle has started traveling and the rolling motion has been terminated, the amount change in pitch angle, using the amounts of correction set for each roll angle, and controls the optical axis angles using the corrected pitch angle.

Optical axis control apparatus for headlight

A moving path memory stores a moving path of a train in advance. A signal receiver receives satellite positioning signals. A position calculator calculates measured positions and receiver clock errors, based on the satellite positioning signals and the moving path. A error area calculator sets vector pairs, each consisting of arbitrary two vectors perpendicular to each other on a plane spanned by a tangent vector and a radial vector of a tangent circle of the moving path at the measured positions, and calculates an error area for each vector pair, based on the measured positions, the receiver clock errors, and positions of positioning satellites. A position range extractor extracts a part of the moving path included in each error area, as a candidate position range corresponding to the error area. A position range restrictor determines a common area of the candidate position ranges, as a position range of the train.

Satellite positioning apparatus and train control system capable of determining accurate and limited position range of moving object

A rail state monitoring apparatus () includes: first and second transmission antennas () to transmit first and second electric signals to rails (), respectively; first reception antenna () to receive a surface wave () of the first electric signal propagated through rail () and guided wave () of the second electric signal propagated through loop coil (); second reception antenna () to receive surface wave () of the second electric signal propagated through rail () and guided wave () of the first electric signal propagated through loop coil (); and a processor. The processor obtains received powers of the respective electric signals received by first and second reception antennas (), determines a rail state from 'good', 'rail broken', &#x201c;rail crack&#x201d;, or &#x201c;rail surface anomaly&#x201d; based on the received powers, and outputs the rail state as rail state information.

Rail state monitoring apparatus

The rail fracture detection device detects a rail fracture in a section provided with the track circuit by determining presence or absence of a rail fracture and determining presence or absence of a train on a rail by using information on whether a relay of the track circuit is activated or deactivated and information on a current value of current flowing in the track circuit.

Rail fracture detection device

Growing community of inventors

Tokyo, Japan

Wataru Tsujita