Vehicle driving assist system
First Claim
1. A vehicle driving assist system comprising:
- a preceding object detecting section configured to detect a preceding object existing in front of a host vehicle;
a risk potential calculating section configured to calculate a risk potential indicative of a degree of convergence between the host vehicle and the preceding obstacle based on a detection result of the preceding object detecting section;
a first driving assistance control system configured to control at least one of an actuation reaction force exerted by a driver-operated driving operation device and a braking/driving force exerted against the host vehicle based on the risk potential calculated by the risk potential calculating section;
a second driving assistance control system configured to control the braking/driving force of the host vehicle such that at least one of a host vehicle speed and a headway distance between the host vehicle and the preceding obstacle is maintained;
an accelerator pedal actuation state detecting section configured to detect an actuation state of an accelerator pedal; and
an operating state reporting section configured to report an operating state of the first driving assistance control system based on an operating state of the second driving assistance control system, the risk potential, and the accelerator pedal actuation state;
the first driving assistance control system being further configured to control the actuation reaction force exerted by the accelerator pedal as the actuation reaction force exerted by a driver-operated driving operation device; and
the operating state reporting section including a reaction force characteristic changing component configured to change an actuation reaction force characteristic exhibited by the accelerator pedal in accordance with the operation ON/OFF status of the first driving assistance control system when the control executed by the second driving assistance control system is overridden due to depression of the accelerator pedal.
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Accused Products
Abstract
A vehicle driving assist system is provided that calculates the risk potential of the host vehicle with respect to a preceding object existing in front of a host vehicle. A first driving assistance control system controls at least one of an actuation reaction force exerted by a driver-operated driving operation device and a braking/driving force exerted against the host vehicle based on the calculated risk potential. A second driving assistance control system configured to control the braking/driving force of the host vehicle such that at least one of a host vehicle speed and a headway distance between the host vehicle and the obstacle is maintained. An operating state reporting section reports an operating state of the first driving assistance control system based on an operating state of the second driving assistance control system, the risk potential, and an accelerator pedal actuation state.
23 Citations
27 Claims
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1. A vehicle driving assist system comprising:
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a preceding object detecting section configured to detect a preceding object existing in front of a host vehicle; a risk potential calculating section configured to calculate a risk potential indicative of a degree of convergence between the host vehicle and the preceding obstacle based on a detection result of the preceding object detecting section; a first driving assistance control system configured to control at least one of an actuation reaction force exerted by a driver-operated driving operation device and a braking/driving force exerted against the host vehicle based on the risk potential calculated by the risk potential calculating section; a second driving assistance control system configured to control the braking/driving force of the host vehicle such that at least one of a host vehicle speed and a headway distance between the host vehicle and the preceding obstacle is maintained; an accelerator pedal actuation state detecting section configured to detect an actuation state of an accelerator pedal; and an operating state reporting section configured to report an operating state of the first driving assistance control system based on an operating state of the second driving assistance control system, the risk potential, and the accelerator pedal actuation state; the first driving assistance control system being further configured to control the actuation reaction force exerted by the accelerator pedal as the actuation reaction force exerted by a driver-operated driving operation device; and the operating state reporting section including a reaction force characteristic changing component configured to change an actuation reaction force characteristic exhibited by the accelerator pedal in accordance with the operation ON/OFF status of the first driving assistance control system when the control executed by the second driving assistance control system is overridden due to depression of the accelerator pedal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A vehicle driving assist system comprising:
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object detecting means for detecting a preceding object existing in front of a host vehicle; risk potential calculating means for calculating a risk potential indicative of a degree of convergence between the host vehicle and the preceding obstacle based on a detection result of the object detecting means; first driving assistance control means for controlling at least one of an actuation reaction force exerted by a driver-operated driving operation device and a braking/driving force exerted against the host vehicle based on the risk potential calculated by the risk potential calculating means; second driving assistance control means for controlling the braking/driving force of the host vehicle such that at least one of a host vehicle speed and a headway distance between the host vehicle and the preceding obstacle is maintained; accelerator pedal actuation state detecting means for detecting an actuation state of an accelerator pedal; and operating state reporting means for reporting an operating state of the first driving assistance control means based on an operating state of the second driving assistance control means, the risk potential, and the accelerator pedal actuation state; the first driving assistance control means being further configured to control the actuation reaction force exerted by the accelerator pedal as the actuation reaction force exerted by a driver-operated driving operation device; and the operating state reporting means further including a reaction force characteristic changing component configured to change an actuation reaction force characteristic exhibited by the accelerator pedal in accordance with the operation ON/OFF status of the first driving assistance control means when the control executed by the second driving assistance control means is overridden due to depression of the accelerator pedal. - View Dependent Claims (21, 22, 23)
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24. A vehicle driving assistance method comprising:
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operating an object sensor to detect a preceding object existing in front of a host vehicle; operating a controller to calculate a risk potential indicative of a degree of convergence between the host vehicle and the preceding obstacle based on an obstacle detection result; operating the controller to execute a first driving assistance control contrived to control at least one of an actuation reaction force exerted by a driver-operated driving operation device and a braking/driving force exerted against the host vehicle based on the risk potential that was calculated; operating the controller to execute a second driving assistance control contrived to control the braking/driving force of the host vehicle such that at least one of a host vehicle speed and a headway distance between the host vehicle and the preceding obstacle is maintained; operating an actuation sensor to detect an state of actuation of an accelerator pedal of the host vehicle; and operating the controller to report an operating state of the first driving assistance control based on an operating state of the second driving assistance control, the risk potential, and the accelerator pedal actuation state that was detected; the operating of the controller to execute first driving assistance control being further contrived to control the actuation reaction force exerted by the accelerator pedal as the actuation reaction force exerted by a driver-operated driving operation device; and the operating of the controller to report on the operating state further including a reaction force characteristic changing operation contrived to change an actuation reaction force characteristic exhibited by the accelerator pedal in accordance with the operation ON/OFF status of the operating of the controller to execute first driving assistance control when the control executed by the operating of the controller to execute second driving assistance control is overridden due to depression of the accelerator pedal. - View Dependent Claims (25, 26, 27)
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Specification