Driving assist system for vehicle
First Claim
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1. A vehicle driving assist system comprising:
- an obstacle detection device that detects an obstacle in vehicle surroundings;
a risk potential calculation device that calculates a risk potential of a subject vehicle with respect to the obstacle based on detection results of the obstacle detection device;
a drive torque correction device that reduces drive torque generated at the subject vehicle, based on the risk potential calculated by the risk potential calculation device; and
a reaction force control device that controls reaction force generated at an operation device through which a travel command for the subject vehicle is issued according to a correction amount for the drive torque to be reduced by the drive torque correction device.
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Abstract
A vehicle driving assist system calculates a risk potential of the subject vehicle with respect to a front obstacle by estimating a compression amount of a vertical resilient member which is imaginary provided at the front of the subject vehicle when the subject vehicle approaches the front obstacle. The correction amounts of drive force and braking force and the correction amount of reaction force are calculated based upon the calculated risk potential so as to perform drive force/braking force correction control and reaction force control simultaneously.
45 Citations
20 Claims
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1. A vehicle driving assist system comprising:
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an obstacle detection device that detects an obstacle in vehicle surroundings; a risk potential calculation device that calculates a risk potential of a subject vehicle with respect to the obstacle based on detection results of the obstacle detection device; a drive torque correction device that reduces drive torque generated at the subject vehicle, based on the risk potential calculated by the risk potential calculation device; and a reaction force control device that controls reaction force generated at an operation device through which a travel command for the subject vehicle is issued according to a correction amount for the drive torque to be reduced by the drive torque correction device. - View Dependent Claims (2, 3)
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4. A vehicle driving assist system comprising:
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an obstacle detection device that detects an obstacle in vehicle surroundings; a risk potential calculation device that calculates a current risk potential of a subject vehicle with respect to the obstacle based on detection results of the obstacle detection device; an accelerator pedal operation amount detection device that detects an operation amount of an accelerator pedal; a drive torque correction device that corrects a relationship of drive torque with respect to the accelerator pedal operation amount in a reduction direction based on the current risk potential calculated by the risk potential calculation device; an engine control device that controls an engine to generate the drive torque calculated by the drive torque correction device; a reaction force calculation device that calculates a reaction force to be generated at an operation device through which a travel command for the subject vehicle is issued based upon the current risk potential calculated by the risk potential calculation device; and a reaction force generation device that generates the reaction force calculated by the reaction force calculation device. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A vehicle driving assist system comprising:
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an obstacle detection means for detecting an obstacle in vehicle surroundings; a risk potential calculation means for calculating a risk potential of a subject vehicle with respect to the obstacle based on detection results of the obstacle detection means; a drive torque correction means for reducing drive torque generated at the subject vehicle, based on the risk potential calculated by the risk potential calculation means; and a reaction force control means for controlling reaction force generated at an operation device through which a travel command for the subject vehicle is issued according to a correction amount for the drive torque to be reduced by the drive torque correction means.
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16. A vehicle driving assist system comprising:
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an obstacle detection means for detecting an obstacle in vehicle surroundings; a risk potential calculation means for calculating a current risk potential of a subject vehicle with respect to the obstacle based on detection results of the obstacle detection means; an accelerator pedal operation amount detection means for detecting an operation amount of an accelerator pedal; a drive torque correction means for correcting a relationship of drive torque with respect to the accelerator pedal operation amount in a reduction direction based on the current risk potential calculated by the risk potential calculation means; an engine control means for controlling an engine to generate the drive torque calculated by the drive torque correction means; a reaction force calculation means for calculating a reaction force to be generated at an operation device through which a travel command for the subject vehicle is issued based upon the current risk potential calculated by the risk potential calculation means; and a reaction force generation means for generating the reaction force calculated by the reaction force calculation means.
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17. A vehicle driving assist method comprising:
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detecting an obstacle in vehicle surroundings; calculating a risk potential of a subject vehicle with respect to the obstacle based on the detected obstacle; reducing drive torque generated at the subject vehicle based on the calculated risk potential; and controlling reaction force generated at an operation device through which a travel command for the subject vehicle is issued according to a correction amount for the drive torque to be reduced.
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18. A vehicle driving assist method comprising:
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detecting an obstacle in vehicle surroundings; calculating a current risk potential of a subject vehicle with respect to the obstacle based on the detected obstacle; detecting an operation amount of an accelerator pedal; correcting a relationship of drive torque with respect to the accelerator pedal operation amount in a reduction direction based on the calculated current risk potential; controlling an engine to generate the calculated drive torque; calculating a reaction force to be generated at an operation device through which a travel command for the subject vehicle is issued based upon the calculated current risk potential; and applying the calculated reaction force to the operation device.
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19. A vehicle comprising:
a vehicle driving assist system that comprises (a) an obstacle detection device that detects an obstacle in vehicle surroundings;
(b) a risk potential calculation device that calculates a risk potential of a subject vehicle with respect to the obstacle based on detection results of the obstacle detection device;
(c) a drive torque correction device that reduces drive torque generated at the subject vehicle based on the risk potential calculated by the risk potential calculation device; and
(d) a reaction force control device that controls reaction force generated at an operation device through which a travel command for the subject vehicle is issued according to a correction amount for the drive torque to be reduced by the drive torque correction device.
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20. A vehicle comprising:
a vehicle driving assist system that comprises (a) an obstacle detection device that detects an obstacle in vehicle surroundings;
(b) a risk potential calculation device that calculates a current risk potential of a subject vehicle with respect to the obstacle based on detection results of the obstacle detection device;
(c) an accelerator pedal operation amount detection device that detects an operation amount of an accelerator pedal;
(d) a drive torque correction device that corrects a relationship of drive torque with respect to the accelerator pedal operation amount in a reduction direction based on the current risk potential calculated by the risk potential calculation device;
(e) an engine control device that controls an engine to generate the drive torque calculated by the drive torque correction device;
(f) a reaction force calculation device that calculates a reaction force to be generated at an operation device through which a travel command for the subject vehicle is issued based upon the current risk potential calculated by the risk potential calculation device; and
(g) a reaction force generation device that generates the reaction force calculated by the reaction force calculation device.
Specification