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(Not Translated)
3D232 | STEERING CONTROL IN ACCORDANCE WITH DRIVING CONDITIONS | |
B62D6/00 -6/10 |
B62D6/00-6/10 | CC | CC00 CONTROL PURPOSE |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC08 | CC09 | CC10 | |
. Improvement of steerage and stability * | . . Steering stability * | . . . Steering reaction force | . . . Stability against disturbance * | . . . . Road surface disturbance | . . . . Side wind disturbance | . . Steering sense * | . . . Steering wheel shimmy countermeasures | . . . Kickback countermeasures | ||||
CC12 | CC13 | CC14 | CC15 | CC16 | CC17 | CC18 | CC19 | CC20 | ||||
. . Steering response or turning characteristics * | . . . Improvement of characteristics of small turning circle | . . Improvement of yaw characteristics | . . Improvement of lateral acceleration characteristics | . . Improvement of steering characteristics * | . . . Prevention of understeering tendency | . . . Prevention of oversteering tendency | . . Use of ITS | . . Response to automatic driving including garaging function | ||||
CC21 | CC22 | CC23 | CC24 | CC26 | CC27 | CC28 | CC30 | |||||
. Safety or reliability * | . . Prevention of variation due to operational characteristics of control system or delay * | . . . Delay of detection of sensor | . . . Delay of actuator operation | . . Prevention of erroneous determination or erroneous operation or fail-safe * | . . . Noise countermeasures | . . . Detection of sensor abnormal value due to causes other than failures | . . Improvement of detection accuracy including improvement of accuracy of sensor itself | |||||
CC32 | CC33 | CC34 | CC35 | CC36 | CC37 | CC38 | CC39 | CC40 | ||||
. . Countermeasures against failure or fail-safe * | . . . Sensor failures | . . . Actuator failures | . . . Failures of computation circuits or CPU | . . . Memory abnormalities | . . . Backup | . . . Self-diagnosis | . . . Alarm display for abnormality | . . . Prohibition discontinuance stop return or the like | ||||
CC42 | CC43 | CC44 | CC45 | CC46 | CC48 | CC49 | CC50 | |||||
. . Hunting prevention | . . Prevention of overshooting or undershooting | . . Countermeasures against voltage fluctuation | . . Countermeasures against change or degradation with time | . . Sudden change prevention | . Cost reduction or system size reduction | . Improvement of energy saving | . Others * | |||||
DA | DA00 CONTROL INPUT SIGNAL |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | DA08 | DA09 | DA10 | ||
. Steering condition * | . . Front wheel steering angle * | . . . Steering angle of wheel | . . . Steering angle of tyre | . . . . Displacement of tie rod in the axial direction | . . Rear wheel steering angle including angular velocity or angular acceleration | . . Steering angular velocity of front wheels * | . . . Steering angular velocity of steering wheels | . . . Steering angular velocity of tyres | ||||
DA12 | DA13 | DA14 | DA15 | DA16 | DA17 | DA18 | DA19 | DA20 | ||||
. . Steering angular acceleration of front wheels * | . . . Steering angular acceleration of steering wheels | . . . Steering angular acceleration of tyres | . . Steering torque | . . Steering transmission ratios | . . Steering angular ratio of front and rear wheels | . . Inner wheel difference | . . Neutral position | . . Turning and returning of steering wheels | ||||
DA21 | DA22 | DA23 | DA24 | DA25 | DA27 | DA28 | DA29 | |||||
. Vehicle movement state quantity * | . . Positions | . . Vehicle speed * | . . . Wheel speed | . . Forward or backward acceleration including jerk | . . Lateral displacement | . . Lateral speed | . . Lateral acceleration including jerk | |||||
DA32 | DA33 | DA34 | DA36 | DA37 | DA39 | DA40 | ||||||
. . Yaw angle displacement | . . Yaw rates or yaw angular velocity | . . Yaw angular acceleration including jerk | . . Roll | . . Pitch | . . Vehicle body sideslip angle angular velocity or angular acceleration | . . Wheel sideslip angle angular velocity or angular acceleration | ||||||
DA42 | DA43 | DA44 | DA46 | DA47 | DA48 | DA49 | DA50 | |||||
. . Vertical displacement i.e. dynamic displacement | . . Vertical speed or acceleration including jerk | . . Wheel alignment amount including toes cambers or casters | . Cornering power or cornering force | . Engine conditions * | . . Torque | . . Number of revolutions | . Load capacity load or vehicle height | |||||
DA51 | DA52 | DA53 | DA54 | |||||||||
. Fluid-pressure apparatus state quantity * | . . Fluid pressure | . . Fluid temperature | . . Fluid viscosity | |||||||||
DA61 | DA62 | DA63 | DA64 | DA65 | DA66 | DA67 | ||||||
. Motor state quantity * | . . Motor torque | . . Number of revolutions of motors including position angular velocity or angular acceleration | . . Electric current | . . Voltage | . . Phase | . . Temperature | ||||||
DA71 | DA72 | DA73 | DA74 | DA76 | DA77 | DA78 | ||||||
. Environment * | . . Weather * | . . . Atmospheric temperature | . . Driving areas e.g. expressways urban areas or the like | . Obstacles * | . . Other vehicles | . . Pedestrians and on-street structures | ||||||
DA81 | DA82 | DA83 | DA84 | DA86 | DA87 | DA88 | DA90 | |||||
. Road conditions * | . . Road surface conditions e.g. snowy roads gravel roads friction coefficients or the like | . . Balance inclination or road gradient | . . Lanes | . Information from outside vehicle * | . . GPS | . . Information from the ground including images or the like | . In-vehicle database | |||||
DA91 | DA92 | DA93 | DA94 | DA95 | DA96 | DA97 | DA98 | DA99 | ||||
. Occupant's operation * | . . Throttle operation or accelerator operation | . . Brake operation | . . Parking brake operation | . . Transmission including gear position * | . . . Automatic transmission | . . Clutch operation | . Occupant's condition | . Others * | ||||
DB | DB00 CONTROL TIMING |
DB01 | DB02 | DB03 | DB05 | DB06 | DB07 | DB08 | DB09 | DB10 | ||
. at the time of driving at constant speed | . at the time of driving at a middle or high speed | . at the time of driving at a low speed | . at the time of being stopped | . at the time of starting moving | . at the time of moving back | . at the time of changing speed | . during acceleration | . during deceleration | ||||
DB11 | DB12 | DB13 | DB14 | DB20 | ||||||||
. during turning * | . . Initial turning stage | . . Middle turning stage | . . Final turning stage | . Others * | ||||||||
DC | DC00 SIGNAL PROCESSING |
DC01 | DC02 | DC03 | DC04 | DC05 | DC07 | DC08 | DC09 | DC10 | ||
. Proportional processing | . Integral processing | . Differential processing | . Average value processing * | . . Weighted average | . Logical calculation e.g. AND or OR | . Memory maps | . Timekeeping means or timers | . History accumulation and memory retention means | ||||
DC11 | DC12 | DC13 | DC14 | DC15 | DC17 | DC18 | ||||||
. Filters * | . . Low-pass filters | . . High-pass filters | . . Band-pass filters * | . . . Change in bandwidth | . Phase compensation * | . . Delay elements | ||||||
DC21 | DC22 | DC24 | DC25 | DC26 | DC28 | DC29 | ||||||
. Dead zones or hysteresis * | . . characterised by setting the width of dead zones or hysteresis | . Priority means e.g. order in interrupt processing or the like | . Selection of a plurality of input signals of the same kind | . Dithers | . Positive/negative or forward/reverse-determining means | . Absolute value determination means | ||||||
DC31 | DC32 | DC33 | DC34 | DC35 | DC36 | DC38 | DC40 | |||||
. having criteria (a b) * | . . Type of criteria * | . . . a<=X (X: variable) | . . . X<=a (X: variable) | . . . a<=X<=b (X: variable) | . . changeable in criteria | . Image processing | . Others * | |||||
DD | DD00 CONTROL SYSTEM |
DD01 | DD02 | DD03 | DD05 | DD06 | DD07 | DD08 | DD09 | DD10 | ||
. characterised by setting target values of control systems by memory maps. | . characterised by setting target values of control systems by calculations e.g. functions or the like | . characterised by switching control systems | . characterised by setting control gains | . . having changeable control gains | . characterised by transfer functions | . having normative models or models with formulated control purpose | . Digital control | . Duty control or PWM control | ||||
DD11 | DD12 | DD13 | DD14 | DD15 | DD17 | DD18 | DD20 | |||||
. Fuzzy control | . Neuro control | . having evaluation functions or optimum control | . Adaptive control | . Learning control | . Feedback control | . Feedforward control | . Others * | |||||
DE | DE00 CONTROL OUTPUT PATTERN |
DE01 | DE02 | DE03 | DE05 | DE06 | DE08 | DE09 | DE10 | |||
. Rapid increase or decrease | . Gradual increase or decrease | . Change of increasing or decreasing rates | . setting critical values or threshold values * | . . making change | . fixed or made constant | . prohibiting stopping or discontinuing * | . . having dead zones or hysteresis characteristics | |||||
DE11 | DE12 | DE14 | DE20 | |||||||||
. Delay * | . . setting or changing delay time | . setting control time | . Others * | |||||||||
EA | EA00 CONTROLLING OBJECT OR STEERING OBJECT |
EA01 | EA02 | EA04 | EA05 | EA06 | EA07 | EA08 | EA09 | EA10 | ||
. 2WS (front wheels) | . 2WS (rear wheels) | . 4WS * | . . Front wheels | . . Rear wheels | . . Steering angle ratio of front and rear wheels | . switching four-wheel steering and two-wheel steering | . Multiaxial steering | . Others * | ||||
EB | EB00 CONTROLLING OBJECT OR CONTROL AMOUNT |
EB01 | EB02 | EB04 | EB05 | EB06 | EB07 | EB08 | ||||
. Steering direction or phases * | . . switching modes of characteristics | . Steering angle or steering amount | . Steering transmission ratios | . Dead zones | . Time lag and response | . Neutral positions | ||||||
EB11 | EB12 | EB13 | EB15 | EB16 | EB17 | |||||||
. Steering force * | . . Steering reaction force | . . Steering-holding power | . Vehicle movement state quantity * | . . Yaw rates or yaw angles | . . Lateral acceleration or lateral speed | |||||||
EB21 | EB22 | EB23 | EB30 | |||||||||
. Sideslip angles | . Cornering power or cornering force | . stability factors | . Others * | |||||||||
EC | EC00 CONTROLLING OBJECT OR CONTROL MECHANISM |
EC01 | EC02 | EC03 | EC04 | EC05 | EC06 | EC08 | EC09 | EC10 | ||
. Hydraulic control apparatus * | . . Adjustment of supplied oil amount * | . . . Pumps | . . . Flow control valves * | . . . . Orifices | . . . . Tank bypass valves | . . Directional control valves * | . . . Rotary valves | . . . Sliding spool valves | ||||
EC12 | EC13 | EC14 | EC15 | EC16 | EC18 | EC20 | ||||||
. . Reaction force control mechanisms or those having reaction force chambers * | . . . by flow dividing valves | . . . by supply valves or discharge valves | . . . by reaction force-adjusting valves | . . Reaction force control mechanisms or those adjusting sensitivity of valves | . . Adjustment of the communicating amount between left and right chambers of cylinder | . . Neutral position setting means | ||||||
EC21 | EC22 | EC23 | EC24 | EC25 | EC26 | EC27 | EC28 | EC29 | EC30 | |||
. Electric motor type control apparatus * | . . Electric motors * | . . . Current supply adjustment | . . . Supply voltage adjustment | . . . Means for determining positive direction or negative direction | . . . Absolute value-determining means | . . Clutches | . . Reduction gears | . . Reaction force control mechanisms | . . Neutral position-setting devices | |||
EC31 | EC32 | EC33 | EC34 | EC35 | EC37 | EC40 | ||||||
. Variable mechanisms for steering transmission ratio | . Variable mechanisms for steering angle ratio of front and rear wheels | . Cable type steering mechanisms | . peculiar to automatic steering mechanisms * | . . regarding GPS | . Steering by wire | . Others * | ||||||
FF | FF00 RELATION WITH OTHER CONTROL SYSTEMS |
FF01 | FF02 | FF03 | FF04 | FF05 | FF06 | FF07 | FF08 | FF09 | FF10 | |
. Brake control including control of ABS | . Control of transmission | . Vehicle suspension units * | . . Wheel alignment adjustment | . Four-wheel drive and drive force distribution control * | . . Differential gears | . Engine control | . Traction Control | . Aerodynamicl unit control or spoiler control | . Others * | |||
GG | GG00 VEHICLE TYPE |
GG01 | GG02 | GG04 | GG05 | GG06 | GG07 | GG08 | ||||
. General vehicles or vehicles driving on general roads | . . Heavy vehicles buses or trucks | . Industrial vehicles * | . . Trailers or multi-axial steering vehicles | . . Forklifts | . . Unmanned conveyor vehicles | . . Multidirectionally-driving vehicles | ||||||
GG11 | GG12 | GG13 | GG15 | GG20 | ||||||||
. Agricultural vehicles * | . . Agricultural tractors | . . Rice transplanters | . Electric automobiles | . Others * |