Denso Corporation

Hiroshi Ohkata

Toyohito Nozawa

Yoshie Samukawa

Keiji Matsuoka

Tsutomu Natsume

Yoshiaki Hoashi

Eiji Teramura

In an object recognition apparatus for a vehicle which uses intensities of reflected waves from reflecting objects to make a recognition on whether a reflecting object is a vehicle or a non-vehicle, a plurality of transmission waves are emitted to receive a plurality of reflected waves from the reflecting objects, and a decision is made as to whether or not the reflecting object producing the plurality of reflected waves is a unitary reflecting object. If the decision shows a unitary reflecting object, the highest intensity of intensities of the reflected waves from the unitary reflecting object is compared with a reference intensity to makes a decision on whether the reflecting object is a vehicle or a non-vehicle. This enables univocally making a decision for each unitary reflecting object as to whether the reflecting object is more likely to be a vehicle or to be a non-vehicle, thus improving the recognition accuracy.

Object recognition apparatus for vehicle and distance measurement apparatus

Inter-vehicle control apparatus and distance measurement apparatus

Object recognition apparatus for vehicle, inter-vehicle control apparatus, and distance measurement apparatus

In an object recognition apparatus using a radar unit for a vehicle, in mounting the radar unit on the vehicle, a transmission wave is outputted throughout an appropriate angular range in a forward direction of the vehicle in a state where a margin is given to a tolerance of the mounting angle of the radar unit on the vehicle. Laser beams are radiated at a target placed at a predetermined positional relationship relative to the radar unit mounted on the vehicle to extract a laser beam which provides the maximum light-reception intensity in each of the X-axis and Y-axis directions. Moreover, a predetermined angular range is set in each of the X-axis and Y-axis directions so that the laser beam which provides the maximum light-reception intensity is centered therein, and the predetermined angular range is used as a recognition area.

Object recognition apparatus for vehicle, and inter-vehicle distance control unit

An obstacle detection system includes a laser radar sensor that emits laser beams for scanning a two-dimensional detection area ahead of a vehicle and receives reflected beams in a form of reflecting dots representing the obstacle such as a preceding vehicle. To effectively detect a preceding vehicle traveling on a curved road, a reference angular direction in which the preceding vehicle is most probably located is set based on a traveling speed of the own vehicle and a calculated radius of the curved road. The reflecting dots are selected from those located closer to the reference angular direction until they reach a predetermined number, thereby forming a target model. The preceding vehicle is detected based on the target model.

Obstacle detection system for automotive vehicle

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Kariya, Japan

Hiroshi Ohkata