On-board lighting device in a motor vehicle and related method for controlling a light source
First Claim
1. A lighting device carried on board a motor vehicle, said device comprising:
- at least two light sources controlled by a pulse-width modulated lighting signal;
a body controller module generating the pulse-width modulated lighting signal, connected electrically to the light sources and to at least two sensors detecting the approach and/or contact of a hand of a user;
a switching device located between each light source and the ground,wherein each approach and/or contact detection sensor includes;
receiving and processing means receiving the pulse-width modulated lighting signal from the body controller module, anda controller configured to control the switching device connected to the receiving and processing means, andto one of the light sources via the switching device.
1 Assignment
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Accused Products
Abstract
Disclosed is a lighting device (D′) on a motor vehicle, including: at least one light source (D1, D2, D3, D4) controlled by a pulse-width modulated lighting signal (PWM′); and a body controller module (10) generating the lighting signal (PWM′) linked to the light source and, to at least one sensor (100, 200, 300, 400) detecting the approach and/or contact of the user'"'"'s hand. The device includes a switching element (S1, S2, S3, S4) located between the detection sensor and the light source. The detection sensor includes: receiving and a processing element (101, 201, 301, 401) of the lighting signal; and a control element (102, 202, 302, 402) of the switching element, linked electrically firstly to the receiving and processing element, and secondly to the light source via the switching element. Also disclosed is a method for controlling the light source.
7 Citations
20 Claims
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1. A lighting device carried on board a motor vehicle, said device comprising:
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at least two light sources controlled by a pulse-width modulated lighting signal; a body controller module generating the pulse-width modulated lighting signal, connected electrically to the light sources and to at least two sensors detecting the approach and/or contact of a hand of a user; a switching device located between each light source and the ground, wherein each approach and/or contact detection sensor includes; receiving and processing means receiving the pulse-width modulated lighting signal from the body controller module, and a controller configured to control the switching device connected to the receiving and processing means, and to one of the light sources via the switching device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for controlling a light source using a lighting device carried on board a motor vehicle, said device including:
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at least two light sources controlled by a pulse-width modulated lighting signal; a body controller module generating the pulse-width modulated lighting signal, connected electrically to the light sources and to at least two sensors detecting the approach and/or contact of a hand of a user; and a switching device located between each light source and the ground, each approach and/or contact detection sensor including receiving and processing means receiving the pulse-width modulated lighting signal from the body controller module, and a control device configured to control the switching device, connected to the receiving and processing means, and to one of the light sources via the switching device, the method comprising; using the receiving and processing means to store a switching frequency and a switching duty cycle of the lighting signal, both predetermined to obtain a desired luminous intensity; using the body controller module to send a pulse-width modulated lighting signal, having a pulse frequency and a rated voltage, to the processing means and to the light source; receiving the lighting signal by the receiving and processing means; and activating the switching device by the control device, according to the switching frequency and switching duty cycle stored in order to set the light source to the desired luminous intensity. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification