Abstract: A travel controller including an information acquisition part configured to acquire brake state information of a braking device of a host vehicle and an ACC-ECU configured to perform travel control, wherein the travel control includes constant speed travel control and headway travel control. The constant speed travel control is configured to control the host vehicle to travel at constant speed in accordance with a preset target vehicle speed. The headway travel control is configured to control the host vehicle to travel by following another vehicle travelling ahead so that a predetermined inter-vehicle distance in maintained with the other vehicle and the host vehicle travels in accordance with the target vehicle speed. In the ACC-ECU, when a braking performance index of the host vehicle has a “declined value”, a target acceleration of Example 1 takes a reduced value compared to the target acceleration of Comparative Example for a common distance difference.

Abstract: A traveling control apparatus includes: an information obtainer configured to obtain braking state information of a braking device in the host vehicle; and an ACC-ECU configured to execute traveling control including constant speed traveling control to cause the host vehicle to travel at a constant speed based on a preset vehicle speed, and follow-up traveling control to cause the host vehicle to travel so as to follow another vehicle traveling ahead of the host vehicle at a predetermined inter-vehicle distance. The ACC-ECU deactivates the ACC at a time when a braking performance index EV1z, derived from braking state information obtained by the information obtainer while the ACC being in operation, is deemed to be decreased by more than a predetermined first variation width IN_dif1, as compared with a braking performance index EV1a at a time of the ACC having been activated.

Abstract: A vehicle behavior control device is for use in a vehicle including a brake pedal, a master cylinder generating a hydraulic pressure in response to an operation with the brake pedal, an electric hydraulic pressure generator connected to the master cylinder and electrically generating a hydraulic pressure based on the operation with the brake pedal, and a wheel cylinder in each wheel for braking. The device controls a brake hydraulic pressure to be applied to the wheel cylinder to control vehicle behavior. When brake control is executed such that a brake hydraulic pressure not based on the operation with the brake pedal is generated if the brake pedal is not being operated, a hydraulic pressure applied to a wheel cylinder in a diagonal wheel positioned diagonal from a brake wheel for controlling the behavior of the vehicle is adjusted to the hydraulic pressure in the master cylinder.

Abstract: A vehicle behavior control device is for use in a vehicle including a brake pedal, a master cylinder generating a hydraulic pressure in response to an operation with the brake pedal, an electric hydraulic pressure generator connected to the master cylinder and electrically generating a hydraulic pressure based on the operation with the brake pedal, and a wheel cylinder in each wheel for braking. The device controls a brake hydraulic pressure to be applied to the wheel cylinder to control vehicle behavior. When brake control is executed such that a brake hydraulic pressure not based on the operation with the brake pedal is generated if the brake pedal is not being operated, a hydraulic pressure applied to a wheel cylinder in a diagonal wheel positioned diagonal from a brake wheel for controlling the behavior of the vehicle is adjusted to the hydraulic pressure in the master cylinder.

Abstract: A brake system includes an electric brake force generator which brakes a wheel using a driving force of an electric motor and an electric motor controller that performs a field-weakening control of the electric motor. The electric motor controller performs the field-weakening control of the electric motor which then operates the electric brake force generator. Thus, the rotational speed of the electric motor is increased when the field weakening control is performed by the electric motor controller thereby quickly activating the electric braking force generator to enhance response of brake force generation.

Abstract: If the temperature (Tig) of a switching element (25) in a source power supply circuit (24) of an electric motor (2) increases to be equal to or greater than a first predetermined value (?) while an electric vehicle (1) is in a stall state, a torque command for the electric motor (2) is reduced while a braking force command for a brake unit (10) is increased, and if the temperature (Tig) of the switching element (25) subsequently decreases to be equal to or less than a second predetermined value (?(<?)), the braking force command for the brake unit (10) is decreased while the torque command for the electric motor (2) is increased. The increment rate of the torque command for the electric motor (2) is varied in accordance with the degree of road gradient.

Abstract: In a brake-by-wire vehicle brake system using a feedback control unit (12a, 12b, 31, 36, 45) for producing a brake fluid pressure according to a brake input, a response restricting unit (26, 39, 48) restricts a response property of the feedback control unit when an extraneous brake fluid control operation is detected. Thereby, the control unit is prevented from excessively reacting to changes in the brake fluid pressure caused by the extraneous brake fluid control operation, and the vehicle brake system can provide a highly responsive property and a resistance to changes in the brake fluid pressure at the same time.

Abstract: Upon occurrence of a change in the load versus fluid loss property, the braking force for the given brake pedal operation amount is changed so that the vehicle operator is enabled to perceive the change in the load versus fluid loss property. In a vehicle brake system comprising a motor actuated cylinder, wheel cylinders, a stroke sensor for detecting a brake pedal operation amount, a target value setting circuit for setting a target stoke of the motor actuated cylinder, and a fluid pressure compensating circuit for correcting the target stoke upon detection of a deviation between a brake fluid pressure reference value corresponding to the brake pedal operation amount and an actual brake fluid pressure in a direction to reduce the deviation, a stroke limiting circuit restricts a compensation value produced by the fluid pressure compensation circuit according to the brake pedal operation amount.

Abstract: At a time (t3) when a vehicle speed is decreased below a switching-start vehicle speed and the switching from regenerative braking to fluid pressure braking is performed, even if a slave cylinder is caused to be operated by driving an electric motor at the same time of starting the reduction of regenerative braking force, the increase of fluid pressure braking force is delayed by an ineffective stroke in the slave cylinder. Accordingly, a temporary drop of total braking force of the regenerative braking force and fluid pressure braking force is generated. However, at a time (t2) when a vehicle speed is decreased below a switching-preparation-start vehicle speed, the electric motor is, beforehand, caused to drive slightly to cancel out the ineffective stroke in the slave cylinder. This can prevent a temporary drop of the total braking force of the regenerative braking force and fluid pressure braking force at the time of the switching, and can thereby prevent deterioration of brake feeling.

Abstract: In a vehicle capable of performing regenerative braking and fluid pressure braking, in changing from the regenerative braking to the fluid pressure braking in response to a decrease of a vehicle speed due to braking, a fluid pressure braking force is increased from 0 at a first increasing rate when the vehicle speed falls to or below a first threshold value (V1), and the fluid pressure braking force is increased at a second increasing rate, which is higher than the first increasing rate, when the vehicle speed falls to or below a second threshold value (V2), which is smaller than the first threshold value (V1). With this configuration, while occurrence of a squeal noise of a wheel cylinder can be prevented by setting the first increasing rate of the fluid pressure braking force at a small value, a required braking force can be generated without any problem by setting the second increasing rate, to be used subsequently thereto, of the fluid pressure braking force at a large value.

Abstract: An image scanning system includes (1) an image scanning device, which includes an input unit configured to acquire an instruction by a user, an image scanner configured to scan an image and generate image data and a transmitting unit configured to transmit the image data; (2) a display lock judging unit configured to judge whether a display lock is necessary based on whether a predetermined instruction is acquired by the input unit; and (3) a data processing device which includes a first reception unit configured to receive the image data transmitted by the transmitting unit of the image scanning device, a first display unit configured to display the image data received by the first reception unit and a display control unit configured to control the first display unit so as not to display the image data if the display lock judging unit judges that the display lock is necessary.

Abstract: A brake device for a vehicle is provided in which a slave cylinder stroke-target motor rotational angle conversion means (M4) converts a target stroke for a slave cylinder into a target rotational angle for an electric motor, and a target electric motor control means (M5) carries out rotational angle feedback control of operation of an electric motor in order to make an actual rotational angle of the electric motor detected by an actual rotation angle sensor (Sd) converge to a target rotation angle.

Abstract: Upon occurrence of a change in the load versus fluid loss property, the braking force for the given brake pedal operation amount is changed so that the vehicle operator is enabled to perceive the change in the load versus fluid loss property. In a vehicle brake system comprising a motor actuated cylinder, wheel cylinders, a stroke sensor for detecting a brake pedal operation amount, a target value setting circuit for setting a target stoke of the motor actuated cylinder, and a fluid pressure compensating circuit for correcting the target stoke upon detection of a deviation between a brake fluid pressure reference value corresponding to the brake pedal operation amount and an actual brake fluid pressure in a direction to reduce the deviation, a stroke limiting circuit restricts a compensation value produced by the fluid pressure compensation circuit according to the brake pedal operation amount.

Abstract: If the temperature (Tig) of a switching element (25) in a source power supply circuit (24) of an electric motor (2) increases to be equal to or greater than a first predetermined value (?) while an electric vehicle (1) is in a stall state, a torque command for the electric motor (2) is reduced while a braking force command for a brake unit (10) is increased, and if the temperature (Tig) of the switching element (25) subsequently decreases to be equal to or less than a second predetermined value (?(<?)), the braking force command for the brake unit (10) is decreased while the torque command for the electric motor (2) is increased. The increment rate of the torque command for the electric motor (2) is varied in accordance with the degree of road gradient.

Abstract: A communication system includes: a communication device; and a data receiver that is configured so as to be capable of being connected to the communication device. The communication device includes: a content summary receiving unit that is configured so as to be capable of receiving content summary data transmitted from an external device, the content summary data including at least positional data and title data for content data; and a positional data transmitting unit. The data receiver includes a scheduled port querying unit that is configured to transmit to the communication device a query querying the communication device for a scheduled port. The communication device further includes: a scheduled port notifying unit that, upon receiving the scheduled port query from the data receiver, transmits to the data receiver a scheduled port notification indicating the scheduled port.

Abstract: In a brake-by-wire vehicle brake system using a feedback control unit (12a, 12b, 31, 36, 45) for producing a brake fluid pressure according to a brake input, a response restricting unit (26, 39, 48) restricts a response property of the feedback control unit when an extraneous brake fluid control operation is detected. Thereby, the control unit is prevented from excessively reacting to changes in the brake fluid pressure caused by the extraneous brake fluid control operation, and the vehicle brake system can provide a highly responsive property and a resistance to changes in the brake fluid pressure at the same time.

Abstract: In a vehicle capable of performing regenerative braking and fluid pressure braking, in changing from the regenerative braking to the fluid pressure braking in response to a decrease of a vehicle speed due to braking, a fluid pressure braking force is increased from 0 at a first increasing rate when the vehicle speed falls to or below a first threshold value (V1), and the fluid pressure braking force is increased at a second increasing rate, which is higher than the first increasing rate, when the vehicle speed falls to or below a second threshold value (V2), which is smaller than the first threshold value (V1). With this configuration, while occurrence of a squeal noise of a wheel cylinder can be prevented by setting the first increasing rate of the fluid pressure braking force at a small value, a required braking force can be generated without any problem by setting the second increasing rate, to be used subsequently thereto, of the fluid pressure braking force at a large value.

Abstract: At a time (t3) when a vehicle speed is decreased below a switching-start vehicle speed and the switching from regenerative braking to fluid pressure braking is performed, even if a slave cylinder is caused to be operated by driving an electric motor at the same time of starting the reduction of regenerative braking force, the increase of fluid pressure braking force is delayed by an ineffective stroke in the slave cylinder. Accordingly, a temporary drop of total braking force of the regenerative braking force and fluid pressure braking force is generated. However, at a time (t2) when a vehicle speed is decreased below a switching-preparation-start vehicle speed, the electric motor is, beforehand, caused to drive slightly to cancel out the ineffective stroke in the slave cylinder. This can prevent a temporary drop of the total braking force of the regenerative braking force and fluid pressure braking force at the time of the switching, and can thereby prevent deterioration of brake feeling.

Abstract: A brake device for a vehicle is provided in which a slave cylinder stroke-target motor rotational angle conversion means (M4) converts a target stroke for a slave cylinder into a target rotational angle for an electric motor, and a target electric motor control means (M5) carries out rotational angle feedback control of operation of an electric motor in order to make an actual rotational angle of the electric motor detected by an actual rotation angle sensor (Sd) converge to a target rotation angle.

Abstract: An image scanning system includes (1) an image scanning device, which includes an input unit configured to acquire an instruction by a user, an image scanner configured to scan an image and generate image data and a transmitting unit configured to transmit the image data; (2) a display lock judging unit configured to judge whether a display lock is necessary based on whether a predetermined instruction is acquired by the input unit; and (3) a data processing device which includes a first reception unit configured to receive the image data transmitted by the transmitting unit of the image scanning device, a first display unit configured to display the image data received by the first reception unit and a display control unit configured to control the first display unit so as not to display the image data if the display lock judging unit judges that the display lock is necessary.