Light-responsive vehicle control such as an electro-optic rearview mirror system that is adaptive to vehicle configuration
First Claim
Patent Images
1. A vehicular electro-optic rearview mirror system comprising:
- a vehicle including a passenger compartment having at least a forward-viewing forward window, a side-viewing window having a side window light transmission value and a rearward-viewing rear window having a rear window light transmission value;
an interior rearview mirror assembly in said passenger compartment, said vehicle further including headlights operable in a plurality of activation states;
said interior rearview mirror assembly having an interior electro-optic mirror reflective element;
said interior reflective element intercepting passed light that passes through said rearward-viewing rear window, said light passing through said rearward-viewing rear window being attenuated as a function of said rear window light transmission value, said interior reflective clement reflecting at least a portion of said passed light directly to the driver;
at least one exterior rearview mirror assembly outside of said passenger compartment;
said exterior rearview mirror assembly having an exterior electro-optic mirror reflective element;
said exterior reflective clement reflecting at least a portion of light incident thereon to the driver via transmission through said side-viewing window;
at least one light sensor in said passenger compartment and directed toward said rearward-viewing rear window to receive said light passing through said rearward-viewing rear window;
a control receiving an input from said at least one light sensor and producing an interior mirror reflectance level signal that establishes a partial reflectance level of said interior mirror reflective element, said control further producing an exterior mirror reflectance level signal that establishes a partial reflectance level of said exterior mirror reflective element;
said interior mirror reflectance level signal and said exterior mirror reflectance level signal being a function at least of light sensed by said at least one light sensor;
wherein said control establishes said partial reflectance level of said interior mirror reflectance element that is higher than said partial reflectance level of said exterior mirror reflectance element said establishment being a function of said rear window light transmission value; and
said control further producing a headlight activation signal that establishes an activation state of said headlights.
0 Assignments
0 Petitions
Accused Products
Abstract
A vehicular rearview mirror system and method of controlling the vehicle rearview mirror system including establishing a most-dimmed reflectance level of the interior mirror reflective element that is higher than a most-dimmed reflectance level of the exterior mirror reflectance level, the establishment being a function of the rear window light transmission value. The establishment may be a function of sampling of light sensed by at least one light sensor in the passenger compartment that is directed toward the rear-viewing rear window to receive light passing through the rearward-viewing rear window.
24 Citations
62 Claims
-
1. A vehicular electro-optic rearview mirror system comprising:
-
a vehicle including a passenger compartment having at least a forward-viewing forward window, a side-viewing window having a side window light transmission value and a rearward-viewing rear window having a rear window light transmission value;
an interior rearview mirror assembly in said passenger compartment, said vehicle further including headlights operable in a plurality of activation states;
said interior rearview mirror assembly having an interior electro-optic mirror reflective element;
said interior reflective element intercepting passed light that passes through said rearward-viewing rear window, said light passing through said rearward-viewing rear window being attenuated as a function of said rear window light transmission value, said interior reflective clement reflecting at least a portion of said passed light directly to the driver;
at least one exterior rearview mirror assembly outside of said passenger compartment;
said exterior rearview mirror assembly having an exterior electro-optic mirror reflective element;
said exterior reflective clement reflecting at least a portion of light incident thereon to the driver via transmission through said side-viewing window;
at least one light sensor in said passenger compartment and directed toward said rearward-viewing rear window to receive said light passing through said rearward-viewing rear window;
a control receiving an input from said at least one light sensor and producing an interior mirror reflectance level signal that establishes a partial reflectance level of said interior mirror reflective element, said control further producing an exterior mirror reflectance level signal that establishes a partial reflectance level of said exterior mirror reflective element;
said interior mirror reflectance level signal and said exterior mirror reflectance level signal being a function at least of light sensed by said at least one light sensor;
wherein said control establishes said partial reflectance level of said interior mirror reflectance element that is higher than said partial reflectance level of said exterior mirror reflectance element said establishment being a function of said rear window light transmission value; and
said control further producing a headlight activation signal that establishes an activation state of said headlights. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. An adaptive vehicle automatic rearview mirror system, comprising:
-
a vehicle including a passenger compartment having at least a forward-viewing forward window, a side-viewing window having a side window light transmission value and a rearward-viewing window having a rear window light transmission value, said vehicle including headlights operable in a plurality of activation states;
an interior rearview mirror assembly and at least one exterior rearview mirror assembly;
said interior rearview mirror assembly including an interior electro-optic mirror reflective element in said passenger compartment;
said at least one exterior rearview mirror assembly including an exterior electro-optic mirror reflective element outside of said passenger compartment;
at least two light sensors within the passenger compartment, at least one of said at least two light sensors facing generally rearwardly of the vehicle to receive light passing through the rear window of the vehicle; and
a control receiving an input from said at least two light sensors and producing an interior mirror reflectance signal establishing a partial reflectance level of said interior electro-optic mirror reflective element, said control further producing exterior mirror reflectance signal establishing a partial reflectance level of said exterior electro-optic mirror reflective element;
wherein said control establishes said partial reflectance level of said interior mirror reflectance element that is higher than said partial reflectance level of said exterior mirror reflectance element said establishment being a function of said rear window light transmission value;
said establishment being a function of sampling of light sensed by said at least one of said at least two light sensors; and
wherein said control establishes an activation state of said headlights. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A method of controlling a vehicle rearview mirror system, comprising:
-
providing a vehicle having a passenger compartment including at least a forward-viewing forward window, a side-viewing window having a side window light transmission value and a rearward-viewing rear window having a rear window transmission value, said vehicle rearview mirror system having an interior rearview mirror assembly in said passenger compartment and at least one exterior rearview mirror assembly outside of said passenger compartment, said interior rearview mirror assembly having an interior electro-optic mirror reflective element, said at least one exterior rearview mirror assembly having an exterior electro-optic mirror reflective element, wherein said interior electro-optic mirror reflective element reflects at least a portion of light that passes through the rear window to the driver and wherein said exterior electro-optic mirror reflects at least a portion of light incident thereon to the driver via transmission through said side-viewing window, said vehicle further including headlights operable in a plurality of activation states;
providing at least one light sensor receiving light passing through said rearward-viewing rear window;
sampling said at least one light sensor;
establishing a partial reflectance level of said interior electro-optic mirror reflectance element that is higher than a partial reflectance level of said exterior electro-optic reflective element, at least one of said partial reflectance levels being established by said sampling;
said establishing a partial reflectance level of said interior electro-optic mirror reflective element and said establishing a partial reflectance level of said exterior electro-optic mirror reflective element at least as a function of light sensed by said at least one light sensor; and
establishing an activation state of said headlights as a function of light sensed by said at least one light sensor. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
-
-
52. A vehicular rearview mirror system, comprising;
-
a vehicle having a passenger compartment, a side-viewing window having a side window light transmission value and a rearward-viewing rear window having a rear window light transmission value, wherein said side window light transmission value is greater than or equal to said rear window light transmission value, said vehicle further including headlights having a plurality of activation states;
an interior rearview electro-optic mirror inside the vehicle passenger compartment and at least one exterior electro-optic mirror outside the vehicle passenger compartment and visible to the driver through said side-viewing window;
a forward light sensor responsible to ambient light forward of the vehicle and a rearward light sensor responsive to light that passes through said rearward-viewing rear window;
a control receiving an input from at least one of said light sensors and producing an interior mirror reflectance level signal that establishes a partial reflectance level of said interior mirror reflective element, said control further producing an exterior mirror reflectance level signal that establishes a partial reflectance level of said exterior mirror reflective element, said control further establishing a headlight activation signal; and
wherein said control establishes said partial reflectance level of said interior mirror reflectance element that is higher than said partial reflectance level of said exterior mirror reflectance element, said establishment being a function of said rear window light transmission value. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
-
Specification