Vehicle data acquistion and dashboard display system
First Claim
Patent Images
1. A system for optical display of condition and performance information in a motor vehicle comprisinga plurality of sets of electro-optical display elements;
- (29);
a respective control module (26) connected to each set of display elements;
(29)a single central control logic (14); and
a single central data line (13) from said central control logic (14) to said respective control modules (26),said central logic (14) being connected to sensors (30, 31,
32) for the condition and performance information and processing and transmitting the measured values of said information as clocked trains of serial digital signals a over said data line (13) through said control modules (26) to said display elements (29),wherein said central logic (14) places on the data line (13) clocked trains of binary-coded numbers, represented by pulse intervals of varying lengths, which correspond to addresses of specific display control modules (26) and to the values measured by the sensors,each control module (26) includes means for counting pulses and a decoding means,said counting means including means responsive to an address portion of a pulse train, coded for its respective control module, for enabling said decoding means in said module, andsaid decoding means translating a value portion of said binary-coded number into 0- and 1-signals for controlling individual display elements (29).
1 Assignment
0 Petitions
Accused Products
Abstract
A modular, space-saving vehicle data acquisition and dashboard display system, comprising analog and/or digital sensors (30, 31, 32) connected to a central control logic (14) which is in turn connected over a single digital data line to a plurality of control modules (26) including microprocessors (28) and connected to individual display elements (29) such as liquid-crystal displays. The system includes a travel data read-out (21) which can be interrogated using a keyboard (27).
54 Citations
15 Claims
-
1. A system for optical display of condition and performance information in a motor vehicle comprising
a plurality of sets of electro-optical display elements; - (29);
a respective control module (26) connected to each set of display elements;
(29)a single central control logic (14); and a single central data line (13) from said central control logic (14) to said respective control modules (26), said central logic (14) being connected to sensors (30, 31,
32) for the condition and performance information and processing and transmitting the measured values of said information as clocked trains of serial digital signals a over said data line (13) through said control modules (26) to said display elements (29),wherein said central logic (14) places on the data line (13) clocked trains of binary-coded numbers, represented by pulse intervals of varying lengths, which correspond to addresses of specific display control modules (26) and to the values measured by the sensors, each control module (26) includes means for counting pulses and a decoding means, said counting means including means responsive to an address portion of a pulse train, coded for its respective control module, for enabling said decoding means in said module, and said decoding means translating a value portion of said binary-coded number into 0- and 1-signals for controlling individual display elements (29). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- (29);
-
9. a method for acquiring, transmitting, and displaying information in a motor vehicle having a plurality of sensors (30, 31, 32) connected to a single central control logic and a plurality of display control modules (26) connected to said central logic by a single common digital data line (13), and display elements (29) connected to each control module (26),
comprising, in accordance with the invention, the steps of (1) generating, in said single central control logic (14), and placing on said data line (13), clocked trains of digital signals, each train having an address portion and a value portion, (2) distinguishing in each display control module (26) whether or not a train is addressed to the module, (3) evaluating in said module the value portion of each train addressed to the module, and (4) energizing selected display elements (29) associated with said module (26) in accordance with said evaluation.
Specification