Mazda Motor Corporation

Mazda Motor Corporat Ion

Naoki Yamada

Tadayuki Niibe

Kazuhiro Takemura

Yoshihisa Okamoto

Masaki Chiba

Takanobu Kamura

Yusaku Takeda

Masao Inoue

Yuta Tango

Hironobu Yonezawa

Shinichi Kaihara

Hirotaka Mochizuki

Noboru Kyuto

Yukihiro Moriyama

Hiroki Uemura

Tomonori Ohtsubo

Yoh Yamazaki

Atsushi Yagi

Atsuhide Kishi

Kazumoto Tanaka

Kazuo Nishikawa

Nobuyuki Sakata

Seishi Nakamura

Hitoshi Fukuba

Takahide Nouzawa

Takayoshi Nakamoto

Toshihiro Yoshida

Hiroko Kajikawa

Yusuke Kohge

Hiroko Gendou

Minoru Matsui

Katsuhisa Imai

Makoto Shinohara

A driving assistance device () includes: a somatic nervous system activity detector () detecting a somatic nervous system activity, which is a physical activity, of a driver in association with steering of a vehicle; an autonomic nervous system activity detector () detecting an autonomic nervous system activity, which is a mental activity, of the driver in association with the steering of the vehicle; a somatic nervous system activity controller (perception amount controller ()) which is operable to control the somatic nervous system activity; an autonomic nervous system activity controller (sound effect generator ()) which is operable to control the autonomic nervous system activity; and a psychosomatic state controller (balance controller ()). The psychosomatic state controller causes the somatic nervous system activity controller and the autonomic nervous system activity controller to operate such that the two activities shift to the same side with respect to increase and decrease.

Driving assistance device

A vehicle control system is provided, which includes a steering angle detector configured to detect a steering angle of a steering wheel by the operator, the steering wheel is mounted on the vehicle, a speed detector configured to detect a traveling speed of the vehicle, a reaction-force generator configured to generate a reaction force of the steering wheel, and a controller. The controller includes a processor configured to execute a lateral acceleration calculating module to calculate a lateral acceleration based on the traveling speed and the steering angle, a rigidity characteristic setting module to set the reaction force so that a rigidity value that is a ratio of the reaction force to the steering angle increases as the lateral acceleration increases, and a reaction-force control module to control the reaction-force generator so that the reaction force becomes the reaction-force value set by the rigidity characteristic setting module.

Control system for vehicle

A braking control device for a vehicle is provided, which includes an operating amount detecting part configured to detect an operating amount of a brake pedal, a reaction-force giving part configured to generate a reaction force of the brake pedal, a braking-force generating part configured to generate a braking force for wheels according to the brake pedal operating amount, and an electronic control unit (ECU) electrically connected with them. The ECU includes a processor configured to control the giving part and generating part, and set a braking rigidity characteristic based on a braking rigidity that is a ratio of the reaction force to the operating amount, and a vehicle deceleration. The ECU sets a braking rigidity value so that the braking rigidity value increases as the vehicle deceleration becomes larger. The ECU controls the reaction-force giving part based on the braking rigidity value.

Braking control device for vehicle

A vehicle control system is provided, which includes an operating amount detector configured to detect an operating amount by an operator, of an operation mechanism comprising at least one of an accelerator pedal and a brake pedal, a speed detector configured to detect a vehicle traveling speed, a reaction-force generator configured to generate a reaction force of the pedal, and a controller. The controller includes a processor to execute an acceleration calculating module to calculate an acceleration based on the traveling speed and the operating amount, a rigidity characteristic setting module to set the reaction force so that a rigidity value that is a ratio of the reaction force to the operating amount increases as the acceleration increases, and a reaction-force control module to control the reaction-force generator so that the reaction force generated by the reaction-force generator becomes the reaction-force value set by the rigidity characteristic setting module.

A vehicle sound effect generation apparatus includes a running state detecting unit that detects a running state of a vehicle; a lateral input amount setting unit that sets, based on the running state detected by the running state detecting unit, a lateral input amount in which a physical amount relating to at least one of a movement of the vehicle in a width direction and a movement of the vehicle in a turning direction is a parameter; an adjustment wave sound selector that selects one or more integer-order adjustment wave sounds having an integer-order frequency component, based on the lateral input amount; and a sound effect generation unit that synthesizes a fundamental wave sound having a fundamental frequency component with the one or more integer-order adjustment wave sounds selected.

Sound effect generation device for vehicles

A braking control device for a vehicle is provided, which includes an operating amount detecting part configured to detect an operating amount of a brake pedal, a reaction-force giving part configured to generate a reaction force of the brake pedal, a braking-force generating part configured to generate a braking force for wheels, and an ECU electrically connected with them and configured to control the reaction-force giving part and the braking-force generating part, and set a braking characteristic in which the reaction force according to a stepping force of the brake pedal and a deceleration of the vehicle have a logarithmic relationship, and when the reaction force is above a given reaction force. The ECU controls the braking-force generating part based on the braking characteristic while making the deceleration for the reaction force higher than the logarithmic relationship.

A vehicle control apparatus includes: a plurality of operation devices, a plurality of reaction applying devices, a plurality of driving devices, and control device. The control device is capable of controlling the plurality of reaction applying devices and the plurality of driving devices. When the occupant operates preceding operation devices and subsequently operates subsequent operation devices different from the preceding operation devices, the control device causes a reactive perception quantity that is perceived by the occupant when the occupant starts operating the subsequent operation devices to substantially match a reactive perception quantity that is perceived by the occupant when the occupant finishes operating the preceding operation devices.

Vehicle control apparatus capable of giving continuity to reactive perception quantities of cooperative operation perceived by occupant

A vehicle sound effect generation apparatus generates a sound effect of an engine based on a vibration sound database including a fundamental wave sound having a fundamental frequency component and a plurality of adjustment wave sounds having a frequency component other than the fundamental frequency component. The vehicle sound effect generation apparatus includes a running state detecting unit that detects a running state of a vehicle, a sound effect generation unit that synthesizes the fundamental wave sound with the adjustment wave sounds based on the running state of the vehicle, and a visual guidance direction setting unit that sets a visual guidance direction at which a vehicle occupant shoots a look. The sound effect generation unit causes output characteristics of a sound effect in the visual guidance direction to increase more than output characteristics of a sound effect in a direction other than the visual guidance direction.

A vehicle control apparatus includes: a plurality of operation devices receive operations from an occupant; a plurality of driving devices operate a vehicle with operation quantities applied to the plurality of operation devices; and a control device controls the plurality of driving devices. The control device includes: first and second operating characteristics; and correction device. When the occupant operates the second operation devices during execution of operation of the first operation devices, the correction device corrects the second operating characteristics such that the second operation force at the second response start point is equivalent to the first operation force of the first operation devices obtained when the operation of the second operation devices is started.

Vehicle control apparatus for controlling continuous cooperative operation of plurality of operation devices

A vehicle sound effect generation apparatus generates a sound effect of an engine based on a vibration sound database including a fundamental wave sound having a fundamental frequency component and a plurality of adjustment wave sounds having a frequency component other than the fundamental frequency component. The vehicle sound effect generation apparatus includes a running state detecting unit that detects a running state of a vehicle, a risk degree determining unit that is capable of determining a risk degree of the vehicle based on the running state detected by the running state detecting unit, and a sound effect generation unit that, when the risk degree determining unit determines a risk degree which is a predetermined value or more, synthesizes the fundamental wave sound with one or more discordant adjustment wave sounds having a discordant frequency component other than an integer-order frequency component and a half-order frequency component.

A vehicle sound effect generation apparatus includes a running state detecting unit that detects a running state of a vehicle; a lateral input amount setting unit that sets, based on the running state detected by the running state detecting unit, a lateral input amount in which a physical amount relating to at least one of a movement of the vehicle in a width direction and a movement of the vehicle in a turning direction is a parameter; an adjustment wave sound selector that selects one or more half-order adjustment wave sounds having a half-order frequency component, based on the lateral input amount; and a sound effect generation unit that synthesizes a fundamental wave sound having a fundamental frequency component with the one or more half-order adjustment wave sounds selected.

A vehicle sound effect generation apparatus includes a running state detecting unit that detects a running state of a vehicle, an adjustment wave sound selector that selects one or more adjustment wave sounds having a half-order frequency component or an integer-order frequency component, a sound effect generation unit that synthesizes a fundamental wave sound having a fundamental frequency component with the one or more adjustment wave sounds selected by the adjustment wave sound selector, and an inhibition condition determining unit that can determine a condition that correspondence between an amount of an operation performed by a vehicle occupant and a behavior of the vehicle is inhibited. When the inhibition condition determining unit determines the condition that the correspondence between the amount of the operation and the behavior of the vehicle is inhibited, the adjustment wave sound selector reduces the output characteristics of the adjustment wave sounds selected.

Vehicle sound effect generation apparatus

There are provided view adjustment areas respectively at an upper edge part, a lower edge part, and right-and-left side edge parts of a windshield glass, wherein the view adjustment areas are configured to be respectively switchable between in a transparent state in which forward visibility is ensured and in a translucent or non-transparent state in which the forward visibility is limited (for example, adhesion of a liquid-crystal film). Thereby, the size or the shape of the window-frame structure of the windshield glass which is physically unchangeable can be visually changed.

View adjustment device of vehicle

A driving position adjusting device comprises a seat-position adjusting mechanism to adjust height and seat-face angle of a seat cushion in accordance with longitudinal movement of a driver's seat, and a floor adjusting mechanism to adjust a height of a floor board in accordance with the operation of the longitudinal adjustment of the driver's seat, wherein the seat-position adjusting mechanism is configured so that an inclination angle of the seat cushion becomes smaller as the driver's seat is moved forward from a middle position, and the floor adjusting mechanism is configured so that the height of the floor board becomes higher as the driver's seat is moved forward from the middle position. Accordingly, the sitting position of the driver and the operational function of the operational pedal can be provided properly regardless of the body size of the driver.

Driving position adjusting device

A steering apparatus for a vehicle, which can reduce the steering load and allows accurate steering angle control, is provided. In the steering apparatus for a vehicle, an estimation unit estimates a mechanical impedance upon a driver's steering manipulation. A control unit controls the steering reaction force of a steering wheel based on the estimated mechanical impedance.

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Hiroshima, Japan

Naoki Yamada