Aisin Seiki Kabushiki Kaisha

Other

Toyota Jidosha Kabushiki Kaisha

Toshiyuki Sakai

Masamoto Ando

Naoyasu Enomoto

Shingo Urababa

Takeshi Yamamoto

Hiroji Ikeda

Junichi Sakamoto

Akira Sakai

Harumi Ohori

Akiya Taneda

Tsukasa Fukasawa

Ken Ogue

Michitaka Terada

Hiroki Asada

Tomohiko Funahashi

Ryusei Suzuki

Yoshinori Suzuki

Yuichi Ohta

Michihiko Minoh

Masatoshi Hino

A resistance generating device for a vehicle includes first and second transmission members placed next to each other along a rotary axis of the transmission members and a fixing member provided to form a clearance between the fixing member and a set of the plural transmission members in a radial direction of the rotary axis of the set of the plural transmission members. Each of the transmission members includes a position changing portion generating or releasing a resistance against a rotary motion of a rotary body so that the first transmission member is aligned in line with, or is displaced from the second transmission member along the rotary axis in a case where the first transmission member and the second transmission member rotate in accordance with a rotation of the rotary body, or in accordance with a rotation of a power receiving portion in response to a power.

Resistance generating device

A resistance generating device for a drive unit of an opening and closing member of a vehicle includes a transmission member transmitting a rotary motion to a rotary body, and a fixing member provided to form a clearance between the fixing member and the transmission member in a radial direction of a rotary axis of the transmission member. One of the fixing member and the transmission member includes a magnet and the other includes a magnetic body. The magnet is disposed to face the magnetic body so that the facing position facing each other is changed as the transmission member rotates. The magnet is disposed to face the magnetic body so that magnetic poles at the facing position alternate as the transmission member rotates. The magnetic body and the magnet generate a magnetic force therebetween, the magnetic force generating a resistance against an opening and closing movement of the opening and closing member.

Resistance generating device for drive unit

A switching mechanism includes a main body, a rotational body, a swinging member, and a biasing member. The swinging member detaches from the shaft portion against a biasing force of the biasing member by a centrifugal force generated at the swinging member in response to rotation of the rotational body rotating in conjunction with movement of the rotational member, for example, a vehicle door, to switch the state of the switching mechanism to an operation allowed state in a state where the rotational member is operated to rotationally move. The biasing force of the biasing member pushes the swinging member to make contact with the shaft portion and engages with the shaft portion by friction to retain the rotational body in a stopped state to switch the state of the switching mechanism to a movement restrained state in a state where the rotational member is stopped from making rotational movement.

Switching mechanism

A stabilizer control device for a vehicle includes a first and second stabilizer bars, a housing fixed to an end portion of the second stabilizer bar so as to arrange an end portion of the first stabilizer bar adjacent to the end portion of the second stabilizer bar, a rotational torque reducing mechanism having an input portion fixed to the first stabilizer bar and the housing and reducing a relative rotational torque between the housing and the first stabilizer bar and outputting, a hollow member including the first stabilizer bar so as to rotatably support the first stabilizer bar within the housing and fixed with an output portion of the rotational torque reducing mechanism so as to rotatably support the output portion within the housing, and a clutch mechanism arranged between the hollow member and the housing for engaging and disengaging therebetween.

Stabilizer control device

A driving device for driving an open/close member that is designed to open and close an open portion of a body includes a driving source generating a driving force, a force transmission mechanism disposed between the driving source and the open/close member and serving for transmitting the driving force thereto, and a load regulator for interrupting the driving force transmission when an excessive force is applied to the force transmission mechanism from the open/close member.

Driving device for driving an open/close member

An opening-closing device includes a driving source, an opening-closing mechanism for opening and closing an opening-closing member provided at a vehicle body by operation of the driving source, and a clutch positioned between the driving source and the opening-closing mechanism and sifting an energization state can transmit a driving force of the driving source to the opening-closing mechanism and a non-energization state can not transmit the drive force. The clutch includes a drive portion and a driven portion. The drive portion and the driven portion contact each other by a first load which can transmit the driving force from the driving source to the opening-closing mechanism when the clutch is the energization state. The drive portion and the driven portion contact each other by a second load which can not transmits the driving force from the driving source to opening-closing mechanism when the clutch is the non-energization state.

Opening-closing device for an opening-closing member of a vehicle

The gist of the present invention is to provide an electromagnetic valve which can be produced at a lower cost. In this electromagnetic valve , a piston and a plunger are integrated with each other in such manner that an outer surface of the plunger and an outer surface of the piston are made coplanar in substance in the axial direction.

Electromagnetic valve

A vehicle braking system including a frictional braking device for applying a frictional braking torque to each of a plurality of wheels of the vehicle, a regenerative braking device including at least one electric motor for applying a regenerative braking torque to at least one drive wheel of the vehicle, and a total braking torque control device for controlling a total braking torque including one or both of the regenerative braking torque and the frictional braking torque which are applied to each of the wheels. When the total braking torque of at least one of the wheels has exceeded an upper limit corresponding to a friction coefficient of a road surface on which the motor vehicle is running, the total braking torque control device operates to zero the regenerative braking torque of each of the above-indicated at least one wheel and control the frictional braking torque of this wheel while reducing an influence of the zeroing of the regenerative braking torque.

Vehicle braking system having frictional and regenerative braking devices

The present invention is directed to a brake control system for an electrically operated vehicle which is adapted to add a hydraulic braking operation to a regenerative braking operation, or change the former for the latter, rapidly and smoothly. An electric motor is operatively connected to a wheel for rotating the wheel, and a motor control unit for controlling the electric motor to apply a rotating force and a regenerative braking force to the wheel. In a main passage for connecting a master cylinder with a wheel brake cylinder, a pressure limit changeover device is disposed. The changeover device includes a first pressure limit device which is adapted to close the main passage when a master cylinder pressure is lower than a first predetermined pressure, and open the main passage when the master cylinder pressure exceeds the first predetermined pressure, and a second pressure limit device which is adapted to close the main passage when the master cylinder pressure is lower than a second predetermined pressure which is lower than the first predetermined pressure, and open the main passage when the master cylinder pressure exceeds the second predetermined pressure. First and second valve devices for opening or closing the main passage are connected to the main passage in parallel with the first pressure limit device, and the second valve device is connected in series of the second pressure limit device.

Brake control system for an electrically operated vehicle

The present invention is directed to a brake control system for controlling a braking force applied to a wheel of an electrically operated vehicle. A changeover device is disposed in a main passage for selectively placing one of a first operating position where a static hydraulic pressure supplied from a master cylinder to a wheel brake cylinder is controlled to be lower than a master cylinder pressure generated from the master cylinder when an electric motor applies the regenerative braking force to the wheel, and a second operating position where the static hydraulic pressure is controlled to be substantially equal to the master cylinder pressure when the electric motor does not apply the regenerative braking force to the wheel. A pressure transmitting device is communicated with a dynamic pressure generator through an auxiliary passage and connected to the main passage between the changeover device and the wheel brake cylinder, so that it fluidly separates the dynamic hydraulic pressure and the hydraulic pressure in the wheel brake cylinder, and transmits the dynamic hydraulic pressure to the wheel brake cylinder. And, a valve device is disposed in the auxiliary passage so as to close the auxiliary passage when the regenerative braking force is applied to the wheel, and alternately open and close the auxiliary passage when the hydraulic braking force is applied to the wheel.

The invention is directed to an anti-skid control system for an electrically operated vehicle having an electric motor and a regenerative braking system. The system sets a desired decreasing wheel speed, when a skid detector detects a skidding condition of the wheel in response to the output signal of a wheel speed detector. A controller controls a regenerative braking torque of the electric motor in accordance with a control mode selected from a torque control mode, in which the regenerative braking torque is provided in proportion to operation of a brake operating member, and a rotation control mode, in which the regenerative braking torque is controlled to rotate the electric motor at a predetermined speed corresponding to the desired decreasing wheel speed. The controller changes the torque control mode to the rotation control mode when the skid detector detects the skidding condition.

Anti-skid control system for an electrically operated vehicle

A word processing apparatus has the capability of comparing entered data stored in a text memory with stored data in a dictionary memory from a selected address in the text memory and in a selected order.

Word processing apparatus for comparing entered data with stored data

A system for converting an analog image signal into a digital image signal is provided. The system comprises an analog-to-digital signal converter for producing a digital signal by subjecting an incoming analog signal to threshold processing with a threshold level. The system also comprises a peak/valley extracting circuit for extracting peak and valley points corresponding to thin lines and narrow gaps between lines, respectively, in the original image scanned. The extracted peak and valley points are utilized in the analog-to-digital conversion processing so as not to lose information as to thin lines and narrow gaps between lines. Especially, in extracting peak and valley points, the concentration or level of a particular picture element is compared with that of the adjacent picture elements at least in two directions.

Growing community of inventors

Kariya, Japan

Toshiyuki Sakai