Abstract: A searching apparatus includes a processor that execute a procedure, the procedure including issuing a first instruction for searching a first data portion included in a search scope of a search request, based on a search request, issuing a second instruction for searching a second data portion included in the search scope of a search request, based on the search request, and in a case that another search request, a search scope of which includes second portion, is received before the second instruction is issued, issuing third instruction for collective searching, which includes obtaining data included in the second portion from a storage device and verifying the obtained data with both of the search request and the another search request, instead of the second instruction.

Abstract: A searching apparatus includes a memory that stores a plurality of records, and a processor that executed a procedure, the procedure including searching a first record group, which is a part of a plurality of records, for a record satisfying a first search condition, and, in case of a second search condition being received during the searching, further searching a second record group, which is another part of the plurality of records, for a record satisfying either the first search condition and the second search condition.

Abstract: A search request control apparatus includes a processor to execute a process. The process includes splitting a search request set, which contains a plurality of search requests acquired in a predetermined period, into subsets in accordance with a degree of overlap of data searched by each of the search requests, calculating an average response of the search requests contained in the search request set in accordance with a processing order of the subsets that are obtained through the splitting, and processing collectively in accordance with the processing order, search requests contained in a plurality of subsets having a minimum average response calculated.

Abstract: A totaling device includes a first specification unit comprising a first storage unit for storing first dividing information and first interpolation value information, a second storage unit for storing second dividing information and second interpolation value dividing information and a third storage unit for storing information of a totaling information storage unit for storing totaling information; a second specification unit for specifying the third storage unit related to the second dividing information which coincides with second total dividing information or the third storage unit related to the second interpolation value dividing information which coincides with the second total dividing information; and a totaling unit for specifying a totaling information storage unit and storing the totaling information of the totaling target information in the totaling information storage unit.

Abstract: The present invention provides a doze-off warning apparatus for a vehicle, comprising: a sensor measuring a driver's eye-open time (to) and an eye-closure time (tc); a doze-off driving determination part determining degree of danger based on the measured eye-open time (to) and the eye-closure time (tc) and comparing the determined degree of danger with a predetermined threshold (Kt); and an alarm part providing a warning signal with the driver when the degree of danger exceeds the predetermined threshold (Kt).

Abstract: A totaling device includes a first specification unit comprising a first storage unit for storing first dividing information and first interpolation value information, a second storage unit for storing second dividing information and second interpolation value dividing information and a third storage unit for storing information of a totaling information storage unit for storing totaling information; a second specification unit for specifying the third storage unit related to the second dividing information which coincides with second total dividing information or the third storage unit related to the second interpolation value dividing information which coincides with the second total dividing information; and a totaling unit for specifying a totaling information storage unit and storing the totaling information of the totaling target information in the totaling information storage unit.

Abstract: The present invention provides a doze-off warning apparatus for a vehicle, comprising: a sensor measuring a driver's eye-open time (to) and an eye-closure time (tc); a doze-off driving determination part determining degree of danger based on the measured eye-open time (to) and the eye-closure time (tc) and comparing the determined degree of danger with a predetermined threshold (Kt); and an alarm part providing a warning signal with the driver when the degree of danger exceeds the predetermined threshold (Kt).

Abstract: A vehicle running control apparatus for a motor vehicle is provided which is able to accomplish a braking operation that meets with the driver's intention when the vehicle is decelerated under running control, while assuring improved safety. During deceleration control, target deceleration calculating device calculates a target deceleration degree .alpha.a of the subject vehicle in accordance with a deceleration degree of the preceding vehicle (S30). When the target deceleration degree .alpha.a is smaller than a predetermined deceleration degree X1, braking control device controls an operation of an actuator so as to drive a brake system to generate braking force that corresponds to the target deceleration degree .alpha.a (S32, S36). When the target deceleration degree .alpha.

Abstract: A determining method of this invention includes a step of continuously measuring the relative movement between the wheel and the vehicle body by use of a linear stroke sensor while a motor vehicle is running; a step of creating spectral distribution by subjecting the output of the linear stroke sensor to the frequency analysis; a step of calculating characteristic values inherent to various types of road surfaces; and a step of specifying the type of the road surface based on the calculated characteristic values. When the type of the road surface is specified, the control device of this invention changes the damping force of the suspension to a level corresponding to the type of the road surface.

Abstract: A suspension system includes air suspensions provided for individual wheels of a motor vehicle, each including a damping force switching actuator and an air supply/discharge actuator for the air spring. It further includes sensor for detecting the steering angle of a steering wheel, a sensor for detecting the vehicle velocity, and a control device for controlling the damping force and spring constant of each air suspension in accordance with the values detected by means of the sensors. This thereby reduces the roll of the vehicle body and modifies the steering characteristic of the motor vehicle. The control device includes a controller for detecting the gradient and flexure degree of a road.

Abstract: Various steering coefficients (KB, KC, KG) are decided in accordance with a detected car speed (V), while a correction amount (X) and a correction factor (Y) are determined by fuzzy reasoning in accordance with a detected road surface friction coefficient (.mu.), road surface gradient (.alpha.), and lateral acceleration (G). A reference in-phase steering amount (.delta.RB), equal to a product of a reference in-phase steering coefficient (KB) and a detected steering wheel angle (.theta.H), is corrected by an in-phase correction steering amount (.delta.RC), which is equal to a product of an in-phase steering coefficient (KC) and the detected steering wheel angle (.theta.H), with a delay determined by a time constant (T) calculated from the correction amount (X), to thereby determine a corrected in-phase steering amount (.delta.R). A corrected anti-phase steering amount (.delta.G), obtained by multiplying a reference anti-phase steering amount (.delta.

Abstract: In a turning control apparatus for a vehicle, a torque calculation unit calculates a target lateral acceleration of the vehicle according to detection signals from a steering angle sensor for detecting the direction of a steering wheel and a vehicle speed sensor for detecting the speed of the vehicle. It then sets target driving torque of the engine according to the target lateral acceleration. An electronic control unit controls the operation of a torque control device for reducing driving of the engine so that the driving torque of the engine is a target driving torque independent of manipulation by the driver. This thereby rapidly estimates lateral acceleration applied to the vehicle during turning and prevents control delay to enable stable and positive traveling through a curved road.

Abstract: A control apparatus for controlling the output of a vehicle equipped with an internal combustion engine. The control apparatus includes a torque control unit and an electronic control unit, is electrically connected to various sensors for detecting the running conditions of the vehicle, and is capable of controlling, e.g., the operations of a throttle valve and an ignition plug, to thereby control the driving torque of the engine. The control apparatus calculates a reference driving torque of the engine on the basis of the vehicle speed, and also calculates a slippage of the driving wheels on the basis of a deviation of peripheral speed between the driving and driven wheels.

Abstract: An output control apparatus for a vehicle includes a torque reduction device for reducing driving torque of an engine independent of manipulation by the driver and a vehicle speed detection device for detecting a vehicle speed. It further includes a reference driving torque setting device for setting a reference driving torque according to the vehicle speed detected by the vehicle speed detection device. A reference torque setting device is further included for setting a reference driving torque according to a slip amount of the driving wheels. A target driving torque setting device is further included for setting a target driving torque from the reference driving torque set by the reference torque setting device according to a peripheral speed of the driving wheels. A torque control unit is also included for controlling operation of the torque reduction device so that the driving torque is that of the target driving torque set by the target driving torque setting device.

Abstract: A method and apparatus for learning the neutral position of vehicle steering angle, in which first neutral position decision means decides that the steering shaft is at a neutral position when a running speed detector detects that the vehicle speed is not less than a predetermined threshold level, that the difference in peripheral speed between the right and left drive wheels is smaller than a predetermined first straight-running threshold value and also when a steering shaft reference position sensor continues to detect a reference position of the steering shaft for at least a first count time. The vehicle steering angle is computed on the basis of the angular displacement from the neutral position thus learned.

Abstract: An output control apparatus for a vehicle which includes a torque reduction device for reducing driving torque of an engine independent of manipulation by the driver and a filter device for outputting a corrected longitudinal direction acceleration, varying according to changes in longitudinal direction acceleration of the vehicle body with a predetermined delay time and maintaining the output during a speed shift above the value immediately before the speed shift. A reference torque setting device is further included for setting a reference driving torque according to a slip amount of the driving wheels. A target driving torque setting device is also included for correcting the reference driving torque according to the slip amount of the driving wheels to set a target driving torque.

Abstract: An engine output controlling system for a vehicle by which a driving torque produced by the engine is utilized effectively and such a possible slip of a driving wheel the vehicle that makes driving of the vehicle difficult. The system detects a slipping condition of the driving wheel, sets an aimed driving torque of the engine in accordance with the slipping condition thus detected, and controls the engine to generate the aimed driving torque thus set and controls the engine to retard the ignition timing thereof when the detected slipping condition is excessively great. The system obtains a slip changing rate of the driving wheel, and sets a retard amount, with which the ignition timing is to be retarded, in accordance with the slip changing rate detected.

Abstract: An apparatus for effecting a method for estimating the friction coefficient of a road surface according to the present invention comprises front- and rear-wheel rotation sensors for detecting the running speed of a vehicle, a linear G sensor for detecting an actual transverse acceleration of the vehicle, a steering angle sensor for detecting the steering angle of front wheels, and a torque calculating unit supplied with the vehicle speed, actual transverse acceleration, and steering angle detected by means of these sensors. In the torque calculating unit, which takes account of an assumed value of the stability factor of the vehicle in addition to the vehicle speed, actual transverse acceleration, and steering angle, a target transverse acceleration required by a driver is calculated, for example, and whether or not the friction coefficient of the road surface is low is then estimated according to the relationship between the calculated target transverse acceleration and the actual transverse acceleration.

Abstract: A motor vehicle output power control system quickly reduces the drive torque produced by an engine on a motor vehicle depending on the magnitude of a lateral acceleration which is produced when the motor vehicle makes a turn, or the amount by which drive wheels slips when the motor vehicle is accelerated. A target drive torque depending on the lateral acceleration and a demanded drive torque demanded by the driver of the motor vehicle are added at a predetermined ratio into a turn target drive torque, which is selected as a final target drive torque. The motor vehicle output power control system includes an electronic control unit for controlling an actuator to lower the output drive torque of the engine, independent from controlling action of the driver, such that the output drive torque of the engine is equalized to the final target drive torque.

Abstract: A control apparatus for controlling the output of a vehicle equipped with an internal combustion engine. The control apparatus includes a torque control unit and an electronic control unit, is electrically connected to various sensors for detecting the running conditions of the vehicle, and is capable of controlling, e.g., the operations of a throttle valve and an ignition plug, to thereby control the driving torque of the engine. The control apparatus calculates a reference driving torque of the engine on the basis of the vehicle speed, and also calculates a slippage of the driving wheels on the basis of a deviation of peripheral speed between the driving and driven wheels.