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Class Information
Number: 303/121
Name: Fluid-pressure and analogous brake systems > Speed-controlled
Description: Subject matter wherein the braking fluid and therefore the braking action is regulated by velocity.










Sub-classes under this class:

Class Number Class Name Patents
303/188 All wheel apportioning arrangement (e.g., cross coupling) 26
303/139 And traction control 178
303/176 Antilock control disabled or altered for acceleration or speed ranges 66
303/125 Automatic braking including speed governor or hydraulic retarder 71
303/167 Brake force or pressure determined from speed sensors 107
303/155 Braking pressure demand or braking force desire 393
303/162 Current control of linear piston drive motor 72
303/161 Current or voltage ramp proportional to vehicle speed 14
303/187 Diagonal wheels apportioning arrangement 46
303/199 Electric control circuit detail 48
303/123 For a tractor-trailer type vehicle 121
303/190 Four-wheel drive or all wheel drive 66
303/186 Front-rear axle apportioning or speed difference 179
303/113.1 Having a valve system responsive to a wheel lock signal 310
303/175 Incipient or imminent skid measured 19
303/189 Independent control for each wheel 72
303/153 Lead signal control for antiskid 12
303/169 Left or right speed comparison 61
303/137 Motorcycle 77
303/154 Multiple control signal with multiple threshold 56
303/191 Odd condition or device detection (e.g., fluid or brake temperature, hill holder, anti-squeal controller, acoustic emission) 320
303/127 Pneumatic 40
303/160 Pressure or specific condition (e.g., deceleration) determines wheel speed instead of direct speed sensor 18
303/158 Pressure reapply control 91
303/157 Pressure release control 63
303/174 Previously stored wheel speed information 71
303/156 Pulse frequency or time period controlling pressure rebuild 125
303/152 Regenerative brakes 247
303/170 Select high wheel speed versus select low 56
303/177 Sensing jerk, acceleration, or deceleration 49
303/163 Slip ratio 87
303/164 Slip time versus nonslip time 15
303/150 Specific mu determination 140
303/138 Speed, deceleration, or abs indication 50
303/149 Split coefficient of friction (mu) 107
303/112 Torque sensing 135
303/151 Traction-motor vehicle 60
303/165 Variable target slip values 49
303/168 Wheel generated pulse signal control (speed sensor) 78
303/159 Wheel pressure delay compared to reference 70
303/166 Wheel speed sensor and braking pressure sensor 118
303/171 Wheel speed versus pseudo vehicle speed (e.g., from deceleration) 35
303/122 With failure responsive means 109
303/146 With yaw control 408


Patents under this class:
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Patent Number Title Of Patent Date Issued
8694209 Apparatus for controlling motion of vehicle Apr. 8, 2014
8645003 Braking control system and method for vehicle Feb. 4, 2014
8620554 Accelerator reaction force control apparatus Dec. 31, 2013
8612088 Tire pressure monitoring systems and methods Dec. 17, 2013
8594888 Steering control apparatus Nov. 26, 2013
8589045 System and method for determining a safe maximum speed of a vehicle Nov. 19, 2013
8583358 Devices, systems, and methods for testing crash avoidance technologies Nov. 12, 2013
8532897 Controller and method for detecting vehicle pull Sep. 10, 2013
8527174 Brake controlling apparatus Sep. 3, 2013
8527176 Method for measuring pressure in a pressure regulation unit of a motor vehicle braking system, and a motor vehicle braking system in which the method is implemented Sep. 3, 2013
8457855 Accelerator reaction force control apparatus Jun. 4, 2013
8423253 Automatic braking apparatus for a vehicle Apr. 16, 2013
8392068 Vehicle behavior control device Mar. 5, 2013
8376476 Brake system in electric drive dump truck Feb. 19, 2013
8380361 System, method, and computer readable memory medium for remotely controlling the movement of a series of connected vehicles Feb. 19, 2013
8371662 Wheel braking controller of vehicle Feb. 12, 2013
8332114 Braking system for an aircraft and a method of monitoring braking for an aircraft Dec. 11, 2012
8326505 System and method for self-adaptive control of an electromechanical brake Dec. 4, 2012
8275523 Commercial vehicle with control means and method for controlling commercial vehicle Sep. 25, 2012
8195372 Method of adaptive braking control for a vehicle Jun. 5, 2012
8087733 Braking energy recovery system for a vehicle and vehicle equipped with the same Jan. 3, 2012
8060275 Rough road detection system used in an on-board diagnostic system Nov. 15, 2011
8014927 Antilock brake system control device and method Sep. 6, 2011
7983827 Brake control apparatus Jul. 19, 2011
7805232 Adaptive electronic brake system control apparatus and method Sep. 28, 2010
7765048 Deceleration control apparatus and method for automotive vehicle Jul. 27, 2010
7734404 Deceleration control apparatus for vehicle Jun. 8, 2010
7698034 Integrating active front steering and vehicle stability brake control Apr. 13, 2010
7627415 Device and method for securing the standstill of a motor vehicle Dec. 1, 2009
7560882 AC drive system for electrically operated vehicle Jul. 14, 2009
7499785 Extended braking compensation in hybrid braking systems Mar. 3, 2009
7418333 Method of adjusting a motor vehicle electronic stability program Aug. 26, 2008
7363116 Method for determining the mass of a motor vehicle while taking into account different driving situations Apr. 22, 2008
7322660 Method for electronically regulating brake-power distribution Jan. 29, 2008
7206685 Vehicle travel control apparatus Apr. 17, 2007
7155329 Vehicle deceleration display system and calculation method Dec. 26, 2006
7103465 Vehicle manual brake auxiliary system Sep. 5, 2006
7103464 Automatic distance control method and system for motor vehicles Sep. 5, 2006
7063394 Method and apparatus for setting a desired deceleration of a vehicle Jun. 20, 2006
6980900 Method for determining an estimate of the mass of a motor vehicle Dec. 27, 2005
6755487 Brake adjustment method and apparatus thereof Jun. 29, 2004
6711488 Wheel deceleration-based antiskid brake controller with adaptive deceleration threshold Mar. 23, 2004
6622077 Anti-lock braking system and method Sep. 16, 2003
6571164 Method for controlling an automatic gearbox involving determination of a transverse acceleration value May. 27, 2003
6507781 Preview brake controlling apparatus and method for automotive vehicle Jan. 14, 2003
6502014 Regulating circuit for regulating the driving stability of a motor vehicle using a motor vehicle reference model Dec. 31, 2002
6421598 Anti-lock brake control device Jul. 16, 2002
6386650 Arrangement construction of ABS system May. 14, 2002
6360156 Method and system of determining an acceptable torque level to be applied to at least one clutch pack of an automobile Mar. 19, 2002
6356832 Anti-lock brake control system having enhanced straightline braking efficiency Mar. 12, 2002

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