Abstract: The present invention provides a dual-rate brake vacuum booster including a control valve body, a rubber reaction plate and a reaction rod, the rubber reaction plate being clamped between an end face of the control valve body and a base plate of the reaction rod, wherein accommodating spaces for accommodating an expansion deformation of the rubber reaction plate are respectively provided between a periphery of an end portion on one side of the rubber reaction plate and a periphery of the end face of the control valve body, and between a periphery of an end portion on the other side of the rubber reaction plate and the base plate of the reaction rod. The dual-rate brake vacuum booster prolongs the service life of the rubber reaction plate and can realize the dual-rate braking without using an additional element, thereby resulting in easy processing, simple structure and reduced cost.

Abstract: First main and second hydraulic pressure paths, master cut valves configured to open and close the first and second main hydraulic pressure paths, respectively, a slave cylinder that operates in accordance with an operation amount of a brake operator, a first communication path that communicates from the slave cylinder to the first main hydraulic pressure path, and a second communication path that communicates from the slave cylinder to the second main hydraulic pressure path are provided. The slave cylinder includes a single hydraulic pressure chamber. The slave cylinder communicates with the first and second communication paths through a common flow path connected to the hydraulic pressure chamber. The slave cylinder is configured to be able to increase a pressure on a downstream side of the first or second main hydraulic pressure path. An on-off valve is provided in at least one of the first and second communication paths.

Abstract: A brake system for a railway vehicle comprises a service brake with control valves and an emergency brake with a emergency brake valve adapted to permit or prevent emergency brake pressure from reaching the service brake control valves. The emergency brake is actuatable by a signal on an emergency brake wire. The brake system further comprises an isolating circuit adapted to permit or prevent control of the service brake control valves.

Abstract: Provided is a brake system for a vehicle including an input side hydraulic system, an output side hydraulic system, a first and a second shutoff valves to shut off flowing of the brake fluid between the input side hydraulic system and the output side hydraulic system when closed, a first and a second out-valves through which the brake fluid flows into a reservoir unit when opened, and a control unit to control a motor cylinder device of the output side hydraulic system to generate the brake fluid pressure according to the operational amount of a brake pedal. The control unit opens one or both of the first and the second shutoff valves and the first and the second out-valves when output characteristic of the brake fluid pressure generated by the motor cylinder device shifts from basic characteristic.

Abstract: A brake device for a vehicle may include: a master cylinder generating hydraulic pressure using pressure applied to a pedal; a pedal simulator connected to the master cylinder and providing a pedal force to the pedal; a pair of diverging line parts connected to the master cylinder and receiving hydraulic pressure; a front wheel line part connected to the diverging line part and transferring hydraulic pressure to a front wheel part; a rear wheel line part connected to the front wheel line part and transferring hydraulic pressure to a rear wheel part; and an electric booster installed between the front wheel line part and the front wheel part, and providing hydraulic pressure.

Abstract: The invention relates to a method and device for changing from a coasting or free-rolling mode of a motor vehicle with an internal combustion engine and an automatic clutch, which is disengaged during the coasting or free-rolling mode, to a fuel cut-off mode, in which the clutch is engaged, wherein before engagement of the clutch the internal combustion engine is brought to a revolution rate at which the engagement of the clutch induces no or only small changes in revolution rate in the drive train, and whereby the fuel supply to the internal combustion engine is reduced following engagement of the clutch. Under one or more predetermined conditions the increase of the drag torque of the internal combustion engine acting on the motor vehicle during the changeover from coasting or free-rolling mode to fuel cut-off mode takes place so slowly that the change is not usually noticed by the driver.

Abstract: A transmission control device for a vehicle that includes a controller configured to calculate a first transmission torque based on a first set of inputs, calculate a second transmission torque based on a second set of inputs, determine whether a brake pedal is applied, and apply either the first transmission torque or the second transmission torque based on whether the brake is applied.

Abstract: In the state where a sensor used for controlling a first inverter has an abnormality, when rotation speed Ne of an engine is lower than a predetermined reference value Nref (S120), three phase-on control of a first inverter is performed (S190). This causes the rotation speed of the engine to be increased with an increase in rotation speed of a driveshaft. Operation control of the engine is started when the rotation speed Ne of the engine reaches or exceeds a threshold value Nst (S210 to S230).

Abstract: An on-board apparatus includes a measuring unit, a filtering unit, a predicting unit, an executing unit, a detecting unit, and an adjusting unit. The measuring unit periodically measures a state of an own vehicle. The filtering unit performs a low-pass filter process on measurement results from the measuring unit. The predicting unit predicts behavior of the own vehicle based on the measurement results on which the low-pass filter process has been performed. The executing unit performs processes based on the behavior of the own vehicle predicted by the predicting unit. The detecting unit detects a traveling environment of the own vehicle. The adjusting unit adjusts a time constant for the low-pass filter process based on the traveling environment detected by the detecting unit.

Abstract: A method for controlling a hybrid vehicle includes the following: (a) receiving route data for a trip route; (b) determining a drive profile for the trip route based on the route data and vehicle information; (c) determining an energy deficit distribution based on an adjusted tractive power distribution defined by the drive profile compared with a generator power of the vehicle; (d) determining a minimum energy requirement energy deficit distribution; (e) determining a state of charge (SOC) threshold based on the minimum energy requirement; and (f) commanding the powertrain to operate in a charging mode when the SOC threshold is greater than the SOC of an energy storage device of the vehicle. The charging mode may be one of a condensed charging mode, a standard charging mode, and a prolonged charging mode.

Abstract: When a drive shaft (37) is driven while the operation of an engine (36) is stopped, the rotation of an input-side rotor (28) is restricted by the engagement of a brake. Further, on the basis of the temperature Temp_SR of a brush (96) acquired by a temperature sensor (97), the distribution of torque Tcoup acting between the input-side rotor (28) and the first output-side rotor (18) and torque Tmg acting between the stator (16) and the second output-side rotor (19) is controlled. Consequently, drive performance when the drive shaft (37) is driven while the operation of the engine (36) is stopped is improved while local overheating of a slip ring (95) is prevented.

Abstract: A vehicle control apparatus uses a travel mode selection unit to select between an EV travel mode, an engine travel mode, and an engine generation mode depending on comparisons between an engine generated power cost, an EV effect, and a surplus electric energy. In such manner, according to a travel condition of a vehicle, an appropriate travel mode is selected for an improvement of fuel consumption efficiency. The vehicle control apparatus also computes a fuel consumption decrease or a fuel consumption increase for each of a plurality of travel modes based on an engine efficiency and an MG-INV efficiency. In such manner, fuel consumption increase/decrease for every travel mode may be computed.

Abstract: A control unit for a hybrid vehicle determines whether warming of an engine is insufficient in an outside electric power feed mode. When the warming of the engine is insufficient, it is determined whether current time is in an initial period of electric power feed. When the current time is in the initial period of the electric power feed, only electric power of an electric storage device is supplied to the outside in a state that the engine is off. When the current time is not in the initial period of the electric power feed, the engine is turned on, and only electric power generated in a motor is supplied to the outside. When the warming of the engine is sufficient, the electric power generated in the motor, the electric power of the electric storage device, or both of them are supplied to the outside.

Abstract: A movement support apparatus that supports movement of a vehicle having an internal combustion engine and a motor as drive sources from a current location to a destination includes: a setup unit that sets up any driving mode of an EV mode and an HV mode for each section, into which a driving route from the current location to the destination is partitioned, when a running load for running in each section is set; and a change unit that changes the driving mode in a part of each section of the driving route to a driving mode other than the driving mode set up by the setup unit on: the basis of at least one of a running environment including a running state of the vehicle and a road environment and the miming load as consumption of the battery necessary for running in the EV mode.

Abstract: During acceleration in accordance with an operation of an accelerator pedal in HV traveling, an ECU performs engine rotation speed control for increasing an engine rotation speed in accordance with acceleration of a vehicle, by increasing discharge power of a power storage device to increase driving force of a motor generator and suppressing an output from an engine. The discharge power of the power storage device at the time when performing engine rotation speed control in a CD mode is greater than the discharge power at the time when performing engine rotation speed control in a CS mode.

Abstract: A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The drive control device releases one of the clutch and the brake when the engine is started in a drive mode in which the engine is at rest while the clutch and the brake are in an engaged state, selecting the one of the clutch and the brake to be released, depending upon a drive force generated during starting the engine.

Abstract: A hybrid electric vehicle includes an engine, an electric motor, a transmission gearbox, and a clutch selectively coupling the engine to the electric motor. Engine speed can drop dramatically when operating at high speeds during a scheduled shift event in the gearbox. To reduce the effects felt by the engine speed change, at least one controller is provided and programmed to slip the clutch when locked in response to a drive torque, estimated to be present upon completion of an anticipated shift event, exceeding available negative torque, such as regenerative torque and engine braking torque.

Abstract: Systems and methods for improving operation of a hybrid vehicle are presented. In one example, torque demand of a driveline after a shift is forecast to determine if it is desirable to start the engine early so that engine torque is available after the shift. The approach may improve vehicle torque response.

Abstract: An Electronic Stability Control (ESC) system for a vehicle is disclosed. An electronic control unit (ECU) is programmed to reduce vehicle lateral skidding by reducing differences between an intended vehicle direction and/or yaw rate and an actual vehicle direction and/or yaw rate by applying modifications to operation of the vehicle brakes and/or throttle. The ESC system receives inputs from wheel speed sensors, a steering wheel position sensor, a yaw rate sensor and a lateral acceleration sensor. The ESC system also receives input that indicates at least a property of the road upon which the vehicle is located, wherein the road upon which the vehicle is located is determined from a positioning system that uses a map database and the property is determined from the map database. The ESC system incorporates the road property information in determining when and/or how to modify operation of the vehicle to reduce vehicle skidding.

Abstract: The present invention relates to a method for assistance in the parking of a vehicle from a roadway into a free parking space, by one or more maneuvers of the slot parking type, comprising the following steps: determination of the length of the free parking space, determination of an optimum path to be followed by the movement of the vehicle by successive arcs of a circle, characterized in that it comprises a step for determining the number of maneuvers Nm needed in order to bring the vehicle into the parking space and in that these maneuvers are implemented when this number of maneuvers Nm is less than a threshold S2.

Abstract: Based on a vehicle driving condition indicated by vehicle control information, an image area to be displayed is determined from a panorama image of a vehicle periphery and a judgment is made about a collision possibility between a vehicle outside object appearing in the image area and the vehicle, so that a display image including the image area is generated and displayed on a display 16, and the vehicle is controlled to avoid its collision with the vehicle outside object according to a result of the judgment about the collision possibility.

Abstract: A driving assistance device including: a preceding vehicle detection portion; a speed control portion controlling the speed adjustment to the host vehicle to obtain a target inter-vehicle distance; a preceding vehicle travel trajectory acquisition portion; an entering vehicle detection portion; an entering vehicle travel trajectory acquisition portion; a target trajectory setting portion setting the target travel trajectory of the host vehicle based on at least the travel trajectory of the preceding or the entering vehicle; a steer control portion controlling the adjustment of the steer amount calculated based on the target travel trajectory; and a location determination portion determining the location where the deviation amount between the travel trajectories of the entering and preceding vehicles becomes the predetermined value or below.

Abstract: A system and method for operating a vehicle powertrain are described. In one example, a torque converter that has a variable K factor is adjusted to improve vehicle operation. The system and method may improve vehicle launch and vehicle operation at lower vehicle speeds.

Abstract: When a vehicle equipped with a driving support apparatus moves from an original traveling lane into a lane for passing in order to pass a preceding vehicle and an oncoming vehicle appears in the lane for passing, the safe passing of the preceding vehicle is determined to be impossible and the passing is interrupted even when the oncoming vehicle decelerates, in the case where a deceleration change amount of the oncoming vehicle is smaller than a threshold. On the other hand, when the deceleration change amount of the oncoming vehicle is equal to or greater than the threshold, whereby safety with respect to surrounding vehicles can be confirmed, and it is determined the vehicle can be safely returned in front of the preceding vehicle, the passing of the preceding vehicle is performed.

Abstract: Aspects of the disclosure relate generally to detecting road weather conditions. Vehicle sensors including a laser, precipitation sensors, and/or camera may be used to detect information such as the brightness of the road, variations in the brightness of the road, brightness of the world, current precipitation, as well as the detected height of the road. Information received from other sources such as networked based weather information (forecasts, radar, precipitation reports, etc.) may also be considered. The combination of the received and detected information may be used to estimate the probability of precipitation such as water, snow or ice in the roadway. This information may then be used to maneuver an autonomous vehicle (for steering, accelerating, or braking) or identify dangerous situations.

Abstract: Vehicle with a comfort system having: a vehicle controller device, via which different vehicle systems and/or vehicle functions can be controlled; at least one vehicle communication device for exchanging data via wireless communication; a plurality of identification modules arranged in the vehicle that comprise an identification code readable in the vicinity of the identification modules, each identification code being assigned to an installation location of the identification module. The vehicle controller device is designed to set up a communication connection to a mobile device via the vehicle communication device to receive, via the communication connection, an identification code read out by the mobile device and, via the mobile device and the mobile communication connection, to allow or prohibit control or usage of individual or all vehicle functions and/or systems selectively on the basis of the received identification code.

Abstract: A method for monitoring communications among a plurality of controllers signally linked to a communication bus of a controller area network includes monitoring bus communications including determining bus error counts for a plurality of execution cycles. When a bus error count associated with message transmission from one of the controllers exceeds a predetermined threshold, the one of the controllers is prohibited from communicating on the communications bus for a predetermined period of time and is included in a subset of candidate fault-active controllers. Any of the plurality of controllers included within the subset of candidate fault-active controllers that successfully transmits a message is removed from the subset of candidate fault-active controllers. A fault-active controller is isolated based upon the subset of candidate fault-active controllers and the bus error counts.

Abstract: The approach involves determining vision capability information for one or more occupants of at least one vehicle. The approach also involves processing and/or facilitating a processing of the vision capability information to determine an estimated comfortable operational configuration for the at least one vehicle. The approach involves determining a maximum operational configuration for the at least one vehicle. The approach also involves determining a recommended operational configuration for the at least one vehicle based, at least in part, on the estimated comfortable operational configuration and the maximum operational configuration.

Abstract: Ski lift seat including a frame and a restraining bar which is capable of assuming a first lowered end position defining an enclosed space that makes it possible to prevent a passenger from falling, and a second lifted end position in which the restraining bar frees up the front space of the seat so as to enable one or more passengers to disembark, the ski lift seat including an arrangement for locking the restraining bar when the latter assumes the lowered position, the arrangement including a first magnetic member which is attached on the frame and which engages with a second member that can be magnetized so as to hold the restraining bar in the lowered position.

Abstract: A railroad friction-modification system for applying a friction modifier to a section of railroad track, the system comprising an external storage tank for storing the friction modifier, a railroad friction-modification assembly for applying the friction modifier, a tube for connecting the external storage tank to the railroad friction-modification assembly, and a mounting assembly for securing the railroad friction-modification assembly to the rail. The railroad friction-modification assembly includes an expandable membrane for storing the friction modifier, an inlet valve for receiving the friction modifier from the external storage tank, a housing for securely containing the expandable membrane, at least one outlet valve for expelling the friction modifier from the expandable membrane upon the application of a force, and a nozzle for directing the expelled friction modifier onto the section of railroad track.

Abstract: A manway assembly features a nozzle featuring a groove. A cover is attached to the nozzle and may be pivoted between open and closed positions. Retainers secure latch segments to the cover so that they may slide with respect to the cover. A latching mechanism moves the latch segments into and out of engagement with the groove of the nozzle sidewall when the cover is in the closed position. The latching mechanism may include a screw rod that is turned to move the latch segments. The nozzle may also include a nozzle rim that is provided with the manway assembly and secured to a remaining portion of the nozzle. The nozzle assembly may also include an outer cover attached to the nozzle in a hinged fashion and adapted to cover the manway cover when in the closed position to protect the latching mechanism from the environment and tampering.

Abstract: A railroad vehicle where an air conditioner can be installed in an upper part of a roof thereof includes a roof structure having an opening, and a low roof main body having a recessed part provided in the opening, and recessed in a cross section, the air conditioner being able to be placed on the recessed part, and an edge part of the low roof main body which is continuously formed from the low roof main body and joined to the roof structure. The low roof main body and the edge part of the low roof main body are made of plastic.

Abstract: A locomotive headlamp comprising one or more light emitting diode (“LED”) bulbs, wherein the headlamp is ideally suited for reducing the parasitic load of the locomotive by up to about 86 percent, and which is designed and installed in a locomotive's headlight housing to cause the heat generated by the one or more LED bulbs to prevent snow and ice impaction around the locomotive headlamp, and to prevent damage to the electronics and/or circuitry used to operate the one more LED bulbs from the locomotive's power source.

Abstract: A zipline braking system comprising a zipline cable and a destination supporting member; a rider carrier coupled to the zipline cable for movement towards the destination supporting member, such movement generating kinetic energy; a damper having a posterior end and an anterior end and connected to the destination supporting member at the posterior end; a tension line; a stopping member coupled to the zipline cable and the tension line; and the tension line for transferring the kinetic energy to the damper upon the rider carrier engaging the stopping member in movement to the destination supporting member.

Abstract: A brake cylinder having a filament wound composite pressure cylinder and a composite plastic non-pressure head. The pressure cylinder and non-pressure head are secured together by a pair of mating flanges and a V-shaped band securely attached over the flanges. The band has a gap that is easily adjustable to position the gap at the lowest point and be in alignment with a series of radially extending grooves in the flange of the non-pressure head, thereby ensuring proper drainage. The non-pressure head may include an integrally formed opening with a bearing surface for a piston rod, a seat for a piston return spring, a scraper for a piston rod, and a series of internal ribs that provide for structural support and act as stop against a piston overtravel.

Abstract: A method for stopping a train at a range of predetermined positions, first acquires a measured state of the trains, and then updates, in a parameter estimator, estimates of unknown parameters and a reliability of the unknown parameters, based on a comparison of a predicted state of the train with the measured state of the train. An excitation input sequence reference generator acquires dynamics of the train to determine a sequence of excitation inputs based on a current estimate of system parameters, the measured state of the train, and a set of constraints on an operation of the train. A model predictive controller (MPC) receives a control-oriented cost function, a set of constraints, the sequence of excitation inputs, the estimate of the unknown parameters and the reliability of the estimate of the unknown parameters to determine an input command for a traction-brake actuator of the train.

Abstract: A method of determining a position of a vehicle on a guideway includes detecting a position of the vehicle relative to a first reflective positioning element along the guideway. The method also includes detecting a unique identification code of a transponder along the guideway, wherein the transponder is located a first known distance along the guideway from the first reflective positioning element. The method further includes determining the position of the vehicle, using a position determining system, based on a modulated reflection signal received from the transponder, a first non-modulated reflection signal received from the first reflective positioning element, and the first known distance.

Abstract: A multimodal guideway vehicle sensor includes a passive sensor, an active sensor and an unique identification (ID) sensor. The passive sensor is configured to receive and detect a first electromagnetic radiation from a guideway vehicle. The active sensor configured to transmit a second electromagnetic radiation and receive and detect the second electromagnetic radiation reflected from the guideway vehicle. The ID sensor that detects an ID associated with the guideway vehicle. The multimodal guideway vehicle sensor also includes a data fusion center that combines signals from the passive sensor, the active sensor and the ID sensor to produce guideway vehicle information about the guideway vehicle.

Abstract: A pallet transfer apparatus with a handle pulling type folding structure includes a moving body unit which includes a pair of deformed fitting type horizontal support units which are arranged parallel at regular intervals and is configured to move by loading a pallet on a pair of the horizontal support units; a height adjusting body unit which includes a pair of vertical support units which are connected in a vertical direction from each of a pair of the horizontal support units, wherein the heights of the vertical support units can be adjusted; and a folding adjusting unit which includes a horizontal bar-shaped handle connected to the top of each of a pair of the vertical support units.

Abstract: A shopping trolley is provided, including a shopping basket (1) having a grab bar (2) and wheels (3), a chain lock (4) and a coin deposit lock (5), the shopping trolley having a docking station (6) for a portable electronic device with a holder (7) for the device, a power source (8), and means (9) for transferring energy from the power source (8) to the device. The docking station (6) includes a detector for detecting when the device is inserted into the holder (7) and when the device is connected to the energy transfer means (9). The coin deposit lock (5) includes an electromagnetic locking mechanism. The detector is able to emit an electrical or electromagnetic signal to the electromagnetic locking mechanism of the coin deposit lock (5), which has a receiver that is able to trigger the unlocking of the chain lock (4).

Abstract: The luggage sliders include various embodiments for permanent or removable installation upon the underside of a roll-around suitcase, wheeled cart, or similar article to facilitate movement of the article up a flight of stairs or other stepped inclined surface. Some of the sliders are pivotally extendible and retractable. Others are telescopically extendible and retractable. Still others are pivotally attached to one edge of the article, and pivotally fold against a surface of the article for storage. Still others may be adjustably clamped about the base of the article. Still others are pivotally attached about a wheel axle to rotate and lie beneath the wheel for operation. Still others may be removably attached directly to the wheels of the luggage, cart, or other wheeled article. Still others are pivotally attached to a point on the luggage and telescopically extend to project below the wheel for use.

Abstract: A snowmobile ski assembly has a ski defining a slot, a ski runner disposed in the slot and being translatable in the slot between a first position and a second position, and a runner adjustment assembly connected to the ski runner. The runner adjustment assembly selectively translates the ski runner between the first and second positions. A snowmobile having the snowmobile ski assembly and a ski runner are also disclosed.

Abstract: A self-de-lashing power-rake mechanism of an adjustable steering column assembly of a vehicle is provided. The power-rake mechanism includes a jacket, rake bracket coupled to the jacket, and rake bolt extending through the jacket and bracket. At least one pivot bushing is disposed between the jacket and bracket and configured to receive and radially constrict around the bolt. A fastener is configured to be positioned onto the bolt, tightened, and seated on the bracket. The bolt is forced through the fastener, bracket, bushing, and jacket. The bolt is seated on the bracket as the fastener is tightened and draws the bolt, fastener, bracket, bushing, and jacket together as the fastener is being seated on the bracket, thereby de-lashing respective interfaces defined between and among the bolt, fastener, bracket, bushing, and jacket. A steering column assembly including the mechanism is also provided.

Abstract: The invention relates to a superposition drive for a superimposed steering system of a motor vehicle, with a drive shaft and a drive gear cooperating with the drive shaft, wherein the drive shaft is pivotally mounted with respect to the drive gear. A lever element pivotally mounted with respect to the drive gear, which is designed and arranged such that pivoting of the lever element entails pivoting of the drive shaft or vice versa pivoting of the drive shaft entails pivoting of the lever element, is provided.

Abstract: A steering device includes: a pinion shaft that has a pinion on an outer circumferential surface thereof; a rack shaft that has a rack that engages with the pinion; a rack housing that has a recess on an inner circumferential surface thereof and accommodates the rack shaft; a rack guide that has a protrusion smaller than a width of the recess in axial directions of the rack shaft, and is disposed inside the recess, the rack guide contacting an outer circumferential surface of the rack shaft and an inner circumferential surface of the rack housing, and guiding the rack shaft along an axis of the rack shaft; and a spacer that contacts one side and the other side of the protrusion in the axial directions of the rack shaft, and is disposed between an inner surface of the recess and an outer surface of the protrusion.

Abstract: Maneuverability and stability of a suspension unit for a vehicle are improved. A vehicle includes: a steer-by-wire system detecting a displacement of a steering wheel and displacing a steering rack steering steerable wheels on a basis of a detection result of the displacement and a suspension unit suspending the steerable wheels, the suspension unit including: wheel hub mechanisms, each wheel hub mechanism supporting a tire wheel on which a tire is attached, and a plurality of link members supporting the wheel hub mechanisms on the vehicle body; and a kingpin axis passing through an upper pivot point of the link members and lower pivot point of the link members being set to pass through a road surface contact area of the tire at a neutral position of the steering wheel.

Abstract: In a speed reducer of an electric power steering system, a first bearing supports a first end portion of a worm so that the first end portion is movable in an axial direction. Elastic members elastically support the worm in the axial direction. A second bearing supports a second end portion of the worm. An urging member oscillates and urges the worm. The sum of first frictional resistance in the axial direction between an inner ring of the first bearing and the worm and second frictional resistance in the axial direction between the urging member and an outer circumference of an outer ring of the second bearing is less than engagement frictional resistance in the axial direction of the worm.

Abstract: A vehicle includes an engine configured to auto stop and auto start. The vehicle includes an active front steering system with an electric actuator. A controller operates the electric actuator at a current limit that is less than a requested current of the electric actuator in response to a request to change a steering ratio by an amount that results in the requested current being greater than the current limit during an engine auto stop event. The current limit may decrease from the requested current to a predetermined limit after transitioning to the engine auto stop event. The current limit may increase from the predetermined limit to the requested current after transitioning from the engine auto stop event.

Abstract: In an electric power steering system, a low-pass filter executes a low-pass filtering process on a detected steering torque value detected by a torque sensor. A steering torque deviation computing unit computes a deviation ?T between a detected steering torque value T* obtained through the low-pass filtering process and the detected steering torque value detected by the torque sensor. A PI control unit generates a vibration compensation value used to lead the detected steering torque value to the steering torque value obtained through the low-pass filtering process, by executing PI computation on the steering torque deviation computed by the steering torque deviation computing unit.

Abstract: A method for steering control of a vehicle having an actuator which turns steered wheels of the vehicle. The steering control method includes obtaining a location of a target point at a look-ahead distance away from the vehicle based on a maneuver the vehicle is performing, predicting a forward location of the vehicle at the look-ahead distance away from the vehicle, determining a distance between the location of the target point and the forward location, computing a normalized error by dividing the distance with the look-ahead distance, and determining a steering control command based on an integration of the normalized error. The actuator then turns the steered wheels of the vehicle according to the steering control command so as to steer the vehicle to perform various maneuvers.