RU2442699C2 - Control panel with photodiode spot lighting - Google Patents

Abstract

FIELD: control panels. ^ SUBSTANCE: invention relates to the control panel with the photodiode spot lighting used in commercial vehicles; the control panel is located behind the steering wheel within the limits of forward view of the driver; the control panel accommodates the motometer, speedometer, on-board computer, coolant temperature gauge indicator, watch, odometer, oil pressure indicator, fuel indicator, warning lights indicator and functional buttons; all the analogue and digital data can be simultaneously displayed on one panel. ^ EFFECT: panel is convenient in service and is featured by easiness of assembling. ^ 7 cl, 1 dwg

Description

Technical field

The present invention relates to an instrument panel with LED backlight used in commercial vehicles, in which all analog and digital data can be displayed simultaneously and which can provide easy assembly.

State of the art

Modern dashboards either have backlighting or are equipped with lighting systems that provide illumination from the edges to the center of the panel. Such systems typically require high currents due to the incandescent lighting devices that they contain. Electric current is passed through the filament device, and the filament is heated. The light emitted by a white-hot filament is used for lighting purposes. Since the main energy used in an incandescent lamp is converted to heat, energy losses are high. In addition, the physical life of this type of light source is not very long. A small impact may cause the lamp to break and the filament to break.

Currently, indicators of speed, engine speed, air pressure, temperature, oil pressure and fuel consumption are illuminated using 2-watt electric lamps, and warning lights are illuminated using 3-watt electric lamps, which are located separately on the indicator panel located on a vehicle. In a vehicle containing all the options, each backlight cable and power cable are connected separately using a total of 80 electrical connectors.

The above problems are resolved by using an LED backlit display panel. In modern technology, various designs are known related to dashboards with LED backlight.

In a known embodiment of the construction of the art described in German patent application DE 19622900, instead of the arrows on the scale, an LED system is used that illuminates the indicators by means of photoconductors. As a result of accelerating the vehicle or increasing the engine speed, the LEDs light up sequentially, performing the function of an arrow.

Another known design option in the art is a scale according to Japanese Patent Application JP 2003065810, in which liquid crystal displays and LED digital indicators are used to display numbers.

Another well-known design option in the art is a scale in accordance with the application for Spanish patent ES 8500145, in which engine information is presented graphically on the indicator.

However, the aforementioned inventions only apply the existing LED technology on the display panels. In addition, LED backlight systems are used only in speedometers or tachometers. Engine information such as engine speed and fuel consumption information are not displayed on the display panel along with vehicle information. Although known design options that include odometers. However, incandescent bulbs are used to display data on oil and air pressure and fuel consumption, rather than the systems mentioned.

SUMMARY OF THE INVENTION

The aim of the present invention is to provide a dashboard with LED backlight, in which all the warning signals required by the driver and information about the vehicle and the road are displayed on one screen, while the efficiency and quality of the backlight are increased and the service life is increased.

Another objective of the present invention is to provide a dashboard with LED backlighting, which provides convenient access and applicability of functions on the liquid crystal display, and assembly is simplified by reducing the number of electronic transition elements.

Another objective of the present invention is to provide a dashboard with LED illumination, in which in the event of a malfunction, the risk of electric arcing and heating due to convenient control is reduced, and in case of serious malfunctions, excessive noise due to the audible warning signal about the water level, low pressure is eliminated oil and low air pressure, which is issued continuously if violations are not eliminated, regardless of the driver.

Another objective of the present invention is to provide a dashboard with LED backlight containing a connection to the K-line, and which is compatible with the CAN bus, protocol SAE J1939.

DETAILED DESCRIPTION OF THE INVENTION

An LED backlight dashboard designed to achieve the objectives of the present invention is illustrated in the accompanying drawing, which is a schematic view of a display panel of the present invention.

In the drawing, the elements are provided with individual reference positions, and equivalents of these reference positions are indicated below:

1. Dashboard

2. Tachometer

3. Speedometer

4. On-board computer

5. Coolant temperature gauge

6. Watch

7. Odometer

8. Oil pressure gauge

9. Fuel gauge

10. Warning indicator

11. Function buttons

The instrument panel (1) with LED backlight, which is the subject of the present invention, contains mainly a tachometer (2), speedometer (3), on-board computer (4), pointer (5) of coolant temperature, clock (6), odometer (7 ), oil pressure indicator (8), fuel level indicator (9), warning indicator (10), function buttons (11); and it differs in that all analog and digital data can be displayed on one dashboard.

An instrument panel (1) with LED illumination, designed to achieve the objectives of the present invention, is located behind the steering wheel within the level of the front view of the driver.

In one embodiment of the dashboard (1) with LED backlight designed to achieve the objectives of the present invention, any malfunction code that occurs in the engine when executing commands required to control the engine is displayed on said dashboard (1), respectively. In case of serious violations that cannot be eliminated without the assistance of the driver, a continuous warning signal is issued on the warning indicator (10). By displaying the aforementioned malfunctions that may occur in the vehicle on the dashboard (1) instead of issuing audible warning signals, excessive noise can be prevented.

In another embodiment of the present invention, easy access and use of functions on the liquid crystal dashboard (1) can be accomplished by means of function buttons (11). In addition, by reducing the number of intermediate elements used in the assembly line, the time required to make electrical connections is reduced, and the efficiency and quality of the backlight and the durability of the dashboard (1) are increased by means of LEDs that consume less current. The dashboard (1) and all functions are controlled by a microprocessor. Consequently, cables with a small cross section can be used.

In yet another embodiment, a convenient control device is provided for any abnormalities in operation, and the possibility of electric arcing and heating is reduced. The dashboard (1) with LED backlighting is compatible with the connection to the K-line, which controls the CAN bus, which reads information about the speed of the vehicle and transfers it to the electronic engine control unit using the SAE J1939 protocol.

In another embodiment of the present invention, two liquid crystal indicators are installed on the indicator panel (1), one of which has an on-board computer (4), a clock (6) and a warning indicator (10) displaying warning signals about malfunctions using codes DTC and in the other is the odometer (7), which informs about the total mileage and distance traveled at the moment.

The instrument panel (1) with LED backlight, which is the subject of the present invention, cannot be limited by the examples presented in the description of the invention. The essence of the present invention is set forth in the claims.

Claims (7)

1. The dashboard (1) with LED backlight, which can be used in commercial vehicles, which is located behind the steering wheel within the level of the front view of the driver, characterized in that the tachometer (2), speedometer (3), on-board computer (4 ), coolant temperature indicator (5), clock (6), odometer (7), oil pressure indicator (8), fuel level indicator (9), warning indicator (10) and function buttons (11) are all on the same panel and that all analog-digital data can be displayed on bottom of the panel. 2. The dashboard (1) according to claim 1, which provides a convenient control device for any disturbance in normal operation and which reduces the possibility of electric arcing and heating,
characterized in that it is the only panel on which any malfunction code resulting from a malfunction that occurs in the engine when executing the commands required to control the engine is displayed accordingly. 3. The dashboard (1) according to claim 1, which is compatible with the connection to the K-line in which the control is carried out, CAN bus, which reads information about the speed of the vehicle and transfers it to the electronic engine control unit using the SAE J1939 protocol . 4. The dashboard (1) according to claim 1, in which two liquid crystal indicators are installed, one of which has an on-board computer (4), a clock (6) and a warning indicator (10) that displays warning signals about abnormalities of normal operation using DTC, and in the other is the odometer (7), which informs about the total mileage and distance traveled at the moment. 5. The dashboard (1) according to claim 1, which is controlled by a microprocessor, and which uses LEDs that consume less current, and cables with a small cross-section. 6. The dashboard (1) according to claim 1, characterized in that it is the only panel that reduces excessive noise inside the vehicle, and which has a warning indicator (10) that gives a continuous warning signal when a serious violation of normal work that cannot be fixed without driver assistance. 7. The dashboard (1) according to claim 1, characterized in that it is the only panel on which there are function buttons (11) that provide easy access and use of functions on the liquid crystal display panel (1).

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