Vehicle collision warning system and method of operating the same
First Claim
Patent Images
1. A method for use with a vehicle collision warning system, comprising the steps of:
- (a) receiving one or more reading(s) from a target vehicle sensor and retrieving one or more previously stored value(s) from an electronic memory device including a host vehicle response value (RHOST), a gap setting value (GSETTING), or both (RHOST) and (GSETTING), wherein (RHOST) is an estimated deceleration capability of a host vehicle based on driver braking and (GSETTING) is a distance between a host vehicle and a target vehicle that influences when a warning is sent to the driver;
(b) using the reading(s) in conjunction with the previously stored value(s) to solve a unified collision warning algorithm with a control module, wherein the unified collision warning algorithm detects a potential collision without continuously switching between different algorithms in response to dynamic conditions; and
(c) sending a warning to a driver if the unified collision warning algorithm determines that a potential collision exists.
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Abstract
A vehicle collision warning system and method may be used to detect a potential or impending collision with another vehicle and to send a corresponding warning to the driver. In an exemplary embodiment, the collision warning system uses one or more target vehicle readings (e.g., a relative velocity reading (Δv), a target vehicle acceleration reading (aTAR), and a relative distance reading or range (Δd)) to solve a unified collision warning algorithm. If the unified collision warning algorithm determines that there is a potential collision with the target vehicle, then the system sends a corresponding warning to the driver.
7 Citations
19 Claims
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1. A method for use with a vehicle collision warning system, comprising the steps of:
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(a) receiving one or more reading(s) from a target vehicle sensor and retrieving one or more previously stored value(s) from an electronic memory device including a host vehicle response value (RHOST), a gap setting value (GSETTING), or both (RHOST) and (GSETTING), wherein (RHOST) is an estimated deceleration capability of a host vehicle based on driver braking and (GSETTING) is a distance between a host vehicle and a target vehicle that influences when a warning is sent to the driver; (b) using the reading(s) in conjunction with the previously stored value(s) to solve a unified collision warning algorithm with a control module, wherein the unified collision warning algorithm detects a potential collision without continuously switching between different algorithms in response to dynamic conditions; and (c) sending a warning to a driver if the unified collision warning algorithm determines that a potential collision exists. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for use with a vehicle collision warning system, comprising the steps of:
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(a) receiving one or more reading(s) from a target vehicle sensor; (b) using the reading(s) to solve a unified collision warning algorithm with a control module, wherein the unified collision warning algorithm detects a potential collision without continuously switching between different algorithms in response to dynamic conditions; and (c) sending a warning to a driver if the unified collision warning algorithm determines that a potential collision exists, wherein the unified collision warning algorithm includes the following expression;
Δ
v2+2(RHOST−
aTAR)(Δ
d−
GSETTING)>
0.
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11. A method for use with a vehicle collision warning system, comprising the steps of:
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(a) receiving one or more reading(s) from a target vehicle sensor; (b) using the reading(s) to evaluate an expression with a control module, wherein the expression includes at least one of the following terms;
a first term having a square of a relative velocity reading (Δ
v), a second term having a difference between a host vehicle response value (RHOST) and a target vehicle acceleration reading (aTAR), and a third term having a difference between a relative distance reading (Δ
d) and a gap setting value (GSETTING), wherein (RHOST) is an estimated deceleration capability of a host vehicle based on driver braking and (GSETTING) is a distance between a host vehicle and a target vehicle that influences when a warning is sent to the driver; and(c) sending a warning to a driver if the evaluation of the expression suggests a potential collision. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A vehicle collision warning system, wherein the system is mounted on a host vehicle and detects a potential collision with a target vehicle, comprising:
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one or more target vehicle sensor(s) being mounted on the host vehicle and reflecting electromagnetic signals off of the target vehicle; and a control module being electronically coupled to the target vehicle sensor(s) and receiving target vehicle readings from the sensor(s), wherein the control module is configured to use the target vehicle readings in conjunction with one or more previously stored value(s) from an electronic memory device to solve a unified collision warning algorithm that detects a potential collision with the target vehicle without continuously switching between different algorithms in response to dynamic conditions, the one or more previously stored value(s) includes;
a host vehicle response value (RHOST) that is an estimated deceleration capability of a host vehicle based on driver braking, a gap setting value (GSETTING) that is a distance between a host vehicle and a target vehicle that influences when a warning is sent to a driver, or both (RHOST) and (GSETTING).
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Specification