ROLL STABILITY CONTROL SYSTEM FOR AN AUTOMOTIVE VEHICLE USING AN EXTERNAL ENVIRONMENTAL SENSING SYSTEM
First Claim
1. A control system for an automotive vehicle comprising:
- a camera-based vision system generating image signals;
a rollover control system; and
a controller coupled to the camera system and the rollover control system, said controller generating a dynamic vehicle characteristic signal in response to the image signals, said controller controlling the rollover control system in response to the dynamic vehicle control signal.
1 Assignment
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Accused Products
Abstract
A roll stability control system (18) for an automotive vehicle (10) includes an external environment sensing system, such as a camera-based vision system, or a radar, lidar or sonar-based sensing system (43) that generates image, radar, lidar, and/or sonar-based signals. A controller (26) is coupled to the sensing system and generates dynamic vehicle characteristic signals in response to the image, radar, lidar, or sonar-based signals. The controller controls the rollover control system (18) in response to the dynamic vehicle control signal. The dynamic vehicle characteristics may include roll related angles, angular rates, and various vehicle velocities.
80 Citations
160 Claims
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1. A control system for an automotive vehicle comprising:
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a camera-based vision system generating image signals;
a rollover control system; and
a controller coupled to the camera system and the rollover control system, said controller generating a dynamic vehicle characteristic signal in response to the image signals, said controller controlling the rollover control system in response to the dynamic vehicle control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of controlling a rollover control system of automotive vehicle comprising:
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generating an image signal;
generating a dynamic vehicle characteristic signal in response to the image signal; and
controlling the rollover control system in response to the dynamic vehicle control signal. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A control system for an automotive vehicle comprising:
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a camera-based vision system generating image signal;
a dynamic control system; and
a controller coupled to the camera system and the dynamic control system, said controller generating an aggressive driving signal or loss of control signal in response to the image signal, said controller increasing the controlling the dynamic control system entry threshold in response to the aggressive driving signal and reducing the dynamic control system entry threshold in response to the loss of control signal. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43)
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44. A method of controlling a dynamic control system of a vehicle comprising:
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generating image signal;
generating an aggressive driving signal or loss of control signal in response to the image signal;
increasing an entry threshold of the dynamic control system in response to the aggressive driving signal;
reducing the entry threshold of the dynamic control system in response to the loss of control signal; and
controlling the vehicle with the dynamic control system. - View Dependent Claims (45, 46, 47, 48)
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49. A method of controlling a dynamic control system of a vehicle comprising:
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generating image signal;
generating an aggressive driving signal in response to the image signal;
increasing the controlling an entry threshold of the dynamic control system in response to the aggressive driving signal; and
controlling the vehicle with the dynamic control system. - View Dependent Claims (50, 51, 52, 53, 55, 56, 57, 58)
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54. A method of controlling a dynamic control system of a vehicle comprising:
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generating image signal;
generating a loss of control signal in response to the image signal;
reducing the entry threshold of the dynamic control system entry threshold in response to the loss of control signal; and
controlling the vehicle with the dynamic control system.
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59. A control system for an automotive vehicle comprising:
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a plurality of wheel speed sensors generating wheel speed signals;
a camera-based vision system generating image signal;
a radar, lidar, or sonar-based system generating environmental sensing signals;
a dynamic control system; and
a controller coupled to the camera system and the rollover control system, said controller determining a first vehicle speed from the wheel speed sensor signals, said controller controlling the dynamic control system in response to the first wheel speed, determining a wheel lock or wheel slip condition from the wheel speed sensors, generating a second vehicle speed in response to the image signal, said controller controlling the dynamic control system in response to the second vehicle speed during a wheel lock or wheel slip condition. - View Dependent Claims (60, 61, 62, 63)
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64. A method of operating a dynamic control system of an automotive vehicle comprising:
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generating wheel speed signals from a plurality of wheel speed sensors;
generating an image, radar, lidar or sonar-based signal;
determining a first vehicle speed from the wheel speed sensor signals;
controlling the dynamic control system in response to the first wheel speed;
determining a wheel lock or wheel slip condition from the wheel speed sensors;
generating a second vehicle speed in response to the image, radar, lidar or sonar-based signal; and
controlling the dynamic control system in response to the second vehicle speed during a wheel lock or wheel slip condition. - View Dependent Claims (65, 66, 67, 68)
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69. A control system for an automotive vehicle comprising:
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means to determine the longitudinal velocity of the vehicle;
a camera-based vision system generating image signal;
a dynamic control system; and
a controller coupled to the camera system and the dynamic control system, said controller determining a lateral velocity from the image signal, said controller determining a side slip angle in response to the lateral velocity and the longitudinal velocity, said controller controlling the dynamic control system in response to the side slip angle. - View Dependent Claims (70, 71, 72, 73)
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74. A method of operating a dynamic control system of an automotive vehicle comprising:
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determining a longitudinal vehicle velocity;
generating image, radar, or lidar-based signals;
determining a lateral velocity from the image, radar, or lidar-based signals;
determining a side slip angle from the longitudinal vehicle velocity and the lateral velocity; and
controlling the dynamic control system in response to the side slip angle. - View Dependent Claims (75, 76, 77, 78, 79, 80)
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81. A control system for an automotive vehicle on a road surface comprising:
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a camera-based vision system generating image signals;
a dynamic control system;
a controller coupled to the camera system and the rollover control system, said controller generating a low mu identification signal of the road surface in response to the image signal, said controller controlling a dynamic control system in response to the low mu identification signal. - View Dependent Claims (82, 83, 84, 85, 86, 87)
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88. A method of controlling an automotive vehicle on a road surface comprising:
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generating image signals;
generating a low mu identification signal of the road surface in response to the image signal; and
controlling a dynamic control system in response to the low mu identification signal. - View Dependent Claims (89, 90, 91, 92, 93, 94)
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95. A control system for an automotive vehicle comprising:
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a camera-based vision system generating image signals;
a dynamic control system having a first control strategy and a second control strategy; and
a controller coupled to the camera system and the rollover control system, said controller changing a first control strategy to a second control strategy in response to the image signal and controlling a dynamic control system in response to the second control strategy. - View Dependent Claims (96, 97, 98, 99)
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100. A method of operating an automotive vehicle comprising:
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generating an image signals from a vision system;
determining the presence of an in-path hazard in response to the image signal;
changing a first control strategy to a second control strategy in response to the image signal; and
controlling a dynamic control system in response to the second control strategy. - View Dependent Claims (101, 102, 103, 104)
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105. A control system for an automotive vehicle comprising:
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a camera-based vision system generating image signals;
a dynamic control system; and
a controller coupled to the camera system and the rollover control system, said controller generating a tripping hazard signal in response to the image signal and controlling a dynamic control system in response to the tripping hazard signal. - View Dependent Claims (106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 120, 121, 122, 132, 133, 134)
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117. A method of preventing a tripped rollover in an automotive vehicle comprising:
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generating an image, radar, lidar, or sonar-based signal;
identifying a tripping hazard and generating a tripping hazard signal in response to the image, radar, lidar, or sonar-based signal; and
generating a warning signal from a warning device in response to the tripping hazard signal. - View Dependent Claims (118, 119, 123)
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124. A method of preventing a tripped rollover in an automotive vehicle having a center of gravity, said method comprising:
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generating an image, radar, lidar, or sonar-based signal;
identifying a tripping hazard and generating a tripping hazard signal in response to the image, radar, lidar, or sonar-based signal; and
changing the center of gravity to the vehicle counter to a roll direction in response to the tripping hazard signal. - View Dependent Claims (125, 126, 127, 128, 129, 130, 131)
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135. A control system in an automotive vehicle comprising:
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a camera-based vision system generating an image signals;
a dynamic control system;
an integrated measurement unit generating sensor signals, said sensor signals comprising a drift error; and
a controller coupled to the camera-based vision system and the integrated measurement unit, said controller correcting a drift error in the sensor signals in response to the image signals to form corrected sensor signals, said controlling the dynamic control system in response to the corrected sensor signals. - View Dependent Claims (136, 137, 138, 139, 140, 141, 142, 143)
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144. A method of controlling an automotive vehicle comprising:
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generating an image signals from a vision system;
generating sensor signals from an integrated measurement unit wherein said sensor signal comprises a drift error;
correcting a drift error in the sensor signals in response to the image signals to form corrected sensor signals; and
controlling a dynamic control system in response to the corrected sensor signals.
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145. A roll stability control system for an automotive vehicle comprising:
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an active anti-roll bar system;
a camera-based vision system generating image signal; and
a controller coupled to the active anti-roll bar system and the camera-based vision system, said controller generating a roll attitude signal indicative of an impending rollover of the vehicle in response to the image signal and controlling the active anti-roll bar to prevent the vehicle from rolling over in response to the roll attitude signal. - View Dependent Claims (146, 147, 148, 149)
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150. A method of controlling roll stability of an automotive vehicle having a front and rear brake system, and a front and rear active anti-roll bar system comprising the steps of:
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generating image signals from a vision system;
determining a roll angle estimate in response to the image signals;
controlling an active anti-roll bar system in response to the roll angle estimate; and
controlling a brake system in response to the roll angle estimate to provide a predetermined tire force vector. - View Dependent Claims (151, 152)
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153. A control system for an automotive vehicle comprising:
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a level-based system;
a camera-based vision system generating image signal; and
a controller coupled to the active anti-roll bar system and the camera-based vision system, said controller generating a pitch attitude signal and controlling the level-based in response to the pitch attitude signal. - View Dependent Claims (154, 155, 156)
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157. A method of controlling an automotive vehicle comprising:
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generating image signals from a vision system;
determining a pitch angle estimate in response to the image signals; and
controlling a level-based system in response to the pitch angle estimate. - View Dependent Claims (158, 159, 160)
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Specification