Patent application number | Description | Published |
20090036266 | Driving assist method for a vehicle including an automatic transmission, driving assist control program, and driving assist apparatus for a vehicle including an automatic transmission - A driving assist method and driving assist apparatus enable appropriate deceleration in a downshift. If a downshift operation increases the torque output of the engine, and if it is determined that vehicle speed would otherwise be accelerated before the completion of the downshift, an electronic transmission control unit calculates a deceleration for offsetting the acceleration. On the basis of the calculated deceleration, the electronic transmission control unit controls a braking device via an electronic brake control unit to apply a braking force to the vehicle to thereby suppress the acceleration of the vehicle which would otherwise be produced by the increase in engine torque produced by the downshift. | 02-05-2009 |
20090076774 | Probe information collection and distribution systems, methods, and programs - Probe information collection and distribution systems, methods, and programs obtain a vehicle attribute from an onboard device in a vehicle that specifies an attribute of the vehicle and probe information of a measured vehicle behavior. The systems, methods, and programs accumulate the probe information in a memory. The systems, methods, and programs obtain an accumulated quantity of the probe information for each of a plurality of categories included in the vehicle attribute and determine one of the plurality of categories for which statistics of the probe information will be calculated based on the accumulated quantity of the probe information. The systems, methods, and programs calculate the statistics of the probe information of the determined category, generate distribution data based on the calculated statistics, and send the distribution data to the onboard device of the vehicle belonging to the determined category. | 03-19-2009 |
20090187322 | Motion Control Device for Vehicle - A motion control device for a vehicle includes a vehicle speed obtaining means for obtaining a speed of the vehicle, a curve shape obtaining means for obtaining a shape of a curve existing ahead of the vehicle on a road on which the vehicle is traveling, a position obtaining means for obtaining a relative position of the vehicle to the curve, a determining means for determining an appropriate vehicle speed for the vehicle to travel through the curve based on the shape of the curve obtained by the curve shape obtaining means, and a speed reduction controlling means for performing a speed reduction control on the vehicle based on the appropriate vehicle speed determined by the determining means. | 07-23-2009 |
20090192683 | Vehicle control device, vehicle control method and computer program - An anti-collision control is provided under circumstances where it is determined that there is a risk of collision between a host vehicle and a preceding vehicle. The anti-collision control utilizes host vehicle information, preceding vehicle information, and surrounding road conditions to determine whether or not a collision with the preceding vehicle can be avoided through a steering operation. If avoidance is determined to be possible, then a shift-hold control is applied to the AT, whereas if avoidance is determined to be impossible, then a down-shift control is applied to the AT. | 07-30-2009 |
20090198426 | MOTION CONTROL DEVICE FOR VEHICLE - A motion control device for a vehicle includes a vehicle speed obtaining device, a curvature obtaining device for obtaining a bending grade of a curve existing ahead of the vehicle, a position obtaining device for obtaining a relative position between the vehicle and the curve, a determination device for determining an appropriate vehicle speed for the vehicle passing through the curve based on the bending grade, a speed reduction control device for executing a speed reduction control for reducing the vehicle speed based on the vehicle speed and the relative position so that the vehicle passes through the curve at the appropriate vehicle speed, and a gradient obtaining device for obtain a gradient of the road on the curve existing in a traveling direction of the vehicle, wherein the determination device determines the appropriate vehicle speed based on the gradient of the road in addition to the bending grade. | 08-06-2009 |
20090265072 | DRIVING SUPPORT DEVICE, DRIVING SUPPORT METHOD, AND DRIVING SUPPORT PROGRAM - An end point of a reference speed zone is obtained in which a host vehicle travels at a reference speed by controlling an adjustment amount of a drive source output of the host vehicle, without applying a preset correspondence relation regarding an accelerator pedal position and the adjustment amount of the drive source output of the host vehicle. After the host vehicle passes the end point of the reference speed zone, the adjustment amount is changed by a first degree of change if an actual adjustment amount and an adjustment amount corresponding to application of the correspondence relation with the accelerator pedal position do not coincide. | 10-22-2009 |
20090319126 | DRIVING SUPPORT DEVICE AND DRIVING SUPPORT METHOD - A target vehicle speed for traveling a predetermined road section ahead of a host vehicle is obtained, and an acceleration gear ratio, which is a gear ratio for accelerating the host vehicle to a vehicle speed faster than the target vehicle speed after traveling through the predetermined road section, is also obtained. If a driving support control settings indicates that execution of a gear ratio control is permitted, a gear ratio of the host vehicle is set to the acceleration gear ratio before the host vehicle reaches a start point of the predetermined road section. If the driving support control settings indicate that execution of a deceleration control using the brake portion is permitted, a braking portion is controlled so as to decelerate a vehicle speed of the host vehicle to the target vehicle speed before the host vehicle reaches the start point of the predetermined road section. | 12-24-2009 |
20090319138 | DRIVING SUPPORT DEVICE, DRIVING SUPPORT METHOD AND DRIVING SUPPORT PROGRAM - A first acceleration gear ratio is acquired for accelerating a host vehicle in a first acceleration zone following a first zone ahead of the host vehicle, and a second acceleration gear ratio is acquired for accelerating the host vehicle in a second acceleration zone following a second zone ahead of the first zone. A control is executed to set the gear ratio of the host vehicle to the first acceleration gear ratio in a first deceleration zone in order to decelerate the host vehicle before entering the first zone. A control is executed to set the gear ratio of the host vehicle to the second acceleration gear ratio when the host vehicle must decelerate with respect to the second zone while traveling in the first acceleration gear ratio. | 12-24-2009 |
20090319139 | DRIVING SUPPORT DEVICE, DRIVING SUPPORT METHOD AND DRIVING SUPPORT PROGRAM - Information pertaining to a first zone set ahead of a host vehicle and a second zone farther ahead than the first zone is acquired. Based on the information, if a distance between an end point of the first zone and a start point of the second zone is shorter than a distance within which the host vehicle can be slowed at a predetermined deceleration to a second target vehicle speed for traveling the second zone at the start point of the second zone, a second acceleration gear ratio is acquired for accelerating the host vehicle in a second acceleration zone following the second zone. The gear ratio of the host vehicle is set to the second acceleration gear ratio in a first deceleration zone for slowing the host vehicle before reaching the first zone. | 12-24-2009 |
20100082212 | SPEED CONTROL DEVICE FOR VEHICLE - A speed control device includes: a reference point setting unit that sets, based on shape and position of a curve in advance of a vehicle, first and second reference points within the curve, the second reference point being nearer the curve exit than the first reference point; a distance calculating unit that calculates, based on the vehicle location and the reference points, first and second distances, between the vehicle and the first and second reference points, respectively; a target speed determination unit that determines, based on the curve shape and the first and second distances, the first and second target vehicle speeds to be maintained, respectively, before and after passing the first reference point; and a speed control unit that controls the speed of the vehicle based on the target speeds and the detected speed of the vehicle. | 04-01-2010 |
20100082215 | SPEED CONTROL DEVICE FOR VEHICLE - A speed control device includes: a continuous curve acquiring unit that acquires curve shapes and positions of two successive curves in advance of the vehicle; a curve-to-curve distance calculating unit that calculates distance between the two curves based on curve shapes and positions of the two curves; a selection unit that selects, based on the curve shapes, the curve shape of the curve having the larger radius of curvature; a vehicle speed limit setting unit that sets, based on the curve-to-curve distance and selected curve shape, a vehicle speed limit for travel between the two curves; a target vehicle speed determination unit that determines, based on vehicle location, the curve shapes and positions, and the vehicle speed limit, a target vehicle speed for traveling the two curves; and a vehicle speed control unit that controls vehicle speed based on the target and detected vehicle speeds. | 04-01-2010 |
20100102521 | ROLL RIGIDITY CONTROLLING APPARATUS - A roll rigidity controlling apparatus includes a positional information obtaining means for obtaining a positional information of a vehicle, a gradient information obtaining means for obtaining a gradient information relating to a gradient of a road existing ahead of the vehicle, and a roll rigidity distribution changing means for changing a roll rigidity distribution ratio between a front portion and a rear portion of the vehicle on the basis of the positional information obtained by the positional information obtaining means and the gradient information obtained by the gradient information obtaining means before the vehicle reaches a point at which the gradient of the road changes. | 04-29-2010 |
20100106374 | VEHICLE STABILIZATION CONTROL DEVICE - A vehicle stabilization control device includes: an actual turning state quantity acquisition unit that acquires an actual turning state quantity indicating an actual turning state of a vehicle; a curve information acquisition unit that acquires the shape of a curve ahead of the vehicle; a vehicle speed acquisition unit that acquires speed of the vehicle; and a curve traverse possibility determination unit that determines a possibility that the vehicle can stably traverse the curve, based on the curve shape and speed of the vehicle; a control quantity computation unit that, to control braking force on each wheel and suppress understeering, computes a target control quantity for each wheel, based on the actual turning state quantity and on the possibility that the vehicle can stably traverse the curve; and a control unit controlling the braking force for each wheel, based on the target control quantity for each wheel. | 04-29-2010 |
20110010131 | RELIABILITY EVALUATION DEVICE, RELIABILITY EVALUATION METHOD, AND RELIABILITY EVALUATION PROGRAM - Provided is a reliability evaluation method and apparatus to evaluate the reliability of map information. The apparatus includes an evaluation object value acquisition unit that acquires an evaluation object value from map information stored in a storage medium. A measurement value acquisition unit acquires measurement values for the evaluation object value using a sensor installed in a vehicle. After acquiring the measurement values, a reliability evaluation unit that selects a reliability evaluation method to evaluate the reliability of the evaluation object value based on a current measured value and the dispersion of the measured values. | 01-13-2011 |
20110060524 | DEVICE, METHOD, AND PROGRAM FOR SPECIFYING RELIABILITY OF INFORMATION USED IN DRIVING SUPPORT - Provided is a driving support device and method that specifies the reliability of information used in a driving support device. The driving support device includes a storage medium that stores one or more programs and accuracy information that specifies the reliability of information of various elements used by one of the programs to provide driving support. The driving support device also includes an execution target program specification unit that specifies what program from the one or more programs is to be executed as the execution target program. An element selection unit selects an element that corresponds to the specified execution target program from the various elements. The device also includes a reliability specification unit that specifies the reliability of information used in the target execution program based on the accuracy information of the selected element. | 03-10-2011 |
20120140984 | DRIVING SUPPORT SYSTEM, DRIVING SUPPORT PROGRAM, AND DRIVING SUPPORT METHOD - Provided is a driving support system that includes an image recognition unit that performs image recognition processing to recognize if a recognition object associated with any of the support processes is included in image data captured by an on-vehicle camera and a recognition area information storage unit that stores information regarding a set recognition area in the image data that is set depending on a recognition accuracy of the recognition object set for execution of the support process. A candidate process extraction unit is also included for extracting at least one execution candidate support process from the plurality of support processes and a support process execution management unit that allows execution of the extracted execution candidate support process on a condition that a position in the image data of the recognition object recognized by the image recognition processing is included in the set recognition area. | 06-07-2012 |
20130151033 | ALTITUDE RELIABILITY DETERMINING SYSTEM, DATA MAINTENANCE SYSTEM, DRIVING ASSISTANCE SYSTEM, ALTITUDE RELIABILITY DETERMINING PROGRAM, AND METHOD - Systems, methods, and programs acquire map information including road width data and background type data. The systems, methods, and programs acquire altitude information indicating an altitude of each unit region, the unit region being set by dividing a map indicated in the map information into a plurality of unit regions having a predetermined size, and calculate a predicted altitude of each of a plurality of reference points based on the road information and the altitude information, the plurality of reference points being set along a road. The systems, methods, and programs determine a predicted altitude reliability of each of the reference points based on at least one of the background type data and the road width data at the position of the each of the reference points. | 06-13-2013 |
20130253811 | TRAFFIC INFORMATION CREATING DEVICE, TRAFFIC INFORMATION CREATING METHOD AND PROGRAM - Devices, methods, and programs access map information including link information related to links that constitute a road, acquire a current location of a vehicle at unit time intervals, and acquire traffic information, which includes a distributed traffic congestion level of each link at predetermined time intervals. Each time the vehicle exits a link, the devices, methods, and programs sequentially store the exited link in an exited link train based on the map information. If the traffic information has been received, the devices, methods, and program store the distributed traffic congestion level included in the received traffic information as a traffic congestion level in association with a portion of the exited link train within a range from the current location at a received time point when the traffic information has been received to a location that is a predetermined distance behind the current location at the received time point. | 09-26-2013 |