FR3143519A1 - Method and device for assisting in changing the unit of a vehicle speed display device - Google Patents

Abstract

The invention relates to a method for assisting in changing the unit of a device for displaying the speed of a vehicle comprising a touch screen displaying a graphical interface, said graphical interface comprising a first graphic object (31) displayed in permanently, when the screen is on, and displaying at least the speed of the vehicle and a speed unit (31.1), said interface further comprising at least a second graphic object (32), said method comprising steps of: - in response to detection of pressing the indicator light (31.1), control of the display of a third graphic object covering the second graphic object (32), said third graphic object comprising a page for selecting a speed unit , - in response to the detection of a press on the speed unit selection page, controls the display of the vehicle speed display, in the first graphic object (31), according to a unit selected. Figure for abstract: Figure 3

Description

Method and device for assisting in changing the unit of a vehicle speed display device

The invention relates to assisting in changing the unit of a vehicle speed display device .

Technology background

It is known to present a vehicle's speed in the vehicle's instrument panel screen. If the user wishes to change the display unit of this speed, he must then consult the vehicle's user manual to find out the procedure to follow. This procedure can be tedious so much so that the driver may be tempted to forgo carrying it out.

An object of the present invention is to propose a solution to the aforementioned drawbacks and in particular to facilitate the configuration of the vehicle and reduce the time and actions necessary to carry out this configuration.

To this end, the subject of the invention is a method of assisting in changing the unit of a device for displaying the speed of a vehicle comprising a touch screen displaying a graphical interface, said graphical interface comprising a first object graphic displayed permanently, when the screen is on, and displaying at least the speed of the vehicle and a unit of speed, said interface further comprising at least one second graphic object displayed ephemerally, said method comprising steps of:
- in response to the detection of pressing the indicator light, controls the display of a third graphic object covering the second graphic object, said third graphic object comprising a page for selecting a speed unit,
- in response to the detection of a press on the speed unit selection page, controls the display of the vehicle speed display, in the first graphic object, according to a unit selected in the page Selection.

The invention makes it possible to reduce the number of steps necessary to configure a vehicle display. By pressing the speed unit, the user can obtain directly and on the same screen a page for setting the unit of said speed.

Advantageously, the method according to assisting in changing the unit of a device for displaying the speed of a vehicle according to the invention further comprises, in response to the selection of a speed unit, the deletion of said third graphic object, so as to allow said second graphic object to appear.

Advantageously, the selection page includes at least one of the following units: kilometer per hour, mile per hour, meter per second.

The invention also relates to a computer program comprising instructions which, when the program is executed by a computer, lead it to implement the method according to the invention.

The invention also relates to a device for assisting in changing the unit of a device for displaying the speed of a vehicle, said device comprising a memory associated with at least one processor configured for implementing the steps of the process according to the invention.

The invention also relates to a vehicle comprising a central screen and a device according to the invention.

Brief description of the figures

Other characteristics and advantages of the invention will emerge from the description of the non-limiting embodiments of the invention below, with reference to the appended figures, in which:

schematically illustrates a passenger compartment of a vehicle, according to a particular embodiment of the present invention;

schematically illustrates a device for assisting in changing the unit of a vehicle speed display device according to a particular embodiment of the present invention;

illustrates a first example of a man-machine interface according to the invention.

schematically illustrates a device for assisting in changing the unit of a vehicle speed display device, according to a particular embodiment of the present invention;

illustrates a second example of a man-machine interface according to the invention.

There shows a vehicle interior and in particular a dashboard. The dashboard comprises, on the driver's side, which is in the example shown on the left side of the vehicle, a steering wheel 12.

The dashboard has, in a central part, a screen 11. This is a touch screen.

The device according to the invention makes it possible to witness the change of unit of a device for displaying the speed of a vehicle. It is in particular configured to control the display on the screen 11 and, in particular to control the display of a plurality of graphic data display objects called “widgets” on the screen 11.

There shows an example of a display of a plurality of graphic objects 31, 32 on the screen 12.

In this example, screen 11 displays:
- A first graphic object 31 displaying information such as a speed of movement of the vehicle and a speed unit, a speed limit value for the speed limiter, a speed limit detected on the road segment traveled by the vehicle, And
- A second graphic object 32 displaying guidance information.

The first graphic object 31 permanently displayed, when the screen 11 is on, and the vehicle is in a driving phase (in other words the vehicle is moving). The first graphic object 31 displays at least the speed of the vehicle and a speed unit 31.1.

The second graphic object 32 is displayed ephemerally, in other words, it can be replaced by another graphic object or covered by a so-called pop-up window.

In reference to the , the method according to the invention comprises the following steps.

In a first step, the device detects 41 pressing on the speed unit 31.1.

In a second step, in response to detection 41, the device 42 controls the display of a third graphic object covering the second graphic object 32. The third graphic object includes selection of a speed unit.

In a third step, in response to detection 43 of a press on the selection page, the device controls 44 the display of the vehicle speed, in the first graphic object 31, according to a unit selected in the selection page .

There shows a second example of a display of a plurality of graphic objects 31, 32 on the screen 12. This second example is similar to the first but it also shows the display of a third graphic object 33 comprising a page to select a speed unit. This page is represented by a white rectangle for simplification purposes. The selection can be made for example by a drop-down menu or by a choice from a list.

schematically illustrates a device 2 for assisting in changing the unit of a vehicle speed display device, according to a particular and non-limiting embodiment of the present invention. Device 2 corresponds for example to a device on board the vehicle, for example a computer.

The device 2 is for example configured for the implementation of the steps of the method described with regard to the . Examples of such a device 2 include, without being limited to, on-board electronic equipment such as an on-board computer of a vehicle, an electronic computer such as an ECU (“Electronic Control Unit”), a telephone smart phone, tablet, laptop. The elements of device 2, individually or in combination, can be integrated into a single integrated circuit, into several integrated circuits, and/or into discrete components. The device 2 can be produced in the form of electronic circuits or software (or computer) modules or even a combination of electronic circuits and software modules.

The device 2 comprises one (or more) processor(s) 20 configured to execute instructions for carrying out the steps of the method and/or for executing the instructions of the software(s) embedded in the device 2. The processor 20 may include integrated memory, an input/output interface, and various circuits known to those skilled in the art. The device 2 further comprises at least one memory 21 corresponding for example to a volatile and/or non-volatile memory and/or comprises a memory storage device which may comprise volatile and/or non-volatile memory, such as EEPROM, ROM , PROM, RAM, DRAM, SRAM, flash, magnetic or optical disk.

The computer code of the embedded software(s) comprising the instructions to be loaded and executed by the processor is for example stored on memory 21.

According to different particular and non-limiting examples of embodiment, the device 2 is coupled in communication with other similar devices or systems and/or with communication devices, for example a TCU (from the English “Telematic Control Unit” or in French “Telematic Control Unit”), for example via a communications bus or through dedicated input/output ports.

According to a particular and non-limiting example of embodiment, the device 2 comprises a block 22 of interface elements for communicating with external devices, for example a remote server or the “cloud”, other nodes of the ad hoc network. The interface elements of block 22 include one or more of the following interfaces:

- RF radio frequency interface, for example of the Wi-Fi® type (according to IEEE 802.11), for example in the 2.4 or 5 GHz frequency bands, or of the Bluetooth® type (according to IEEE 802.15.1), in the band frequency at 2.4 GHz, or Sigfox type using UBN radio technology (from the English Ultra Narrow Band, in French ultra narrow band), or LoRa in the 868 MHz frequency band, LTE (from the English " Long-Term Evolution” or in French “Long-Term Evolution”), LTE-Advanced (or in French LTE-advanced);

- USB interface (from the English “Universal Serial Bus” or “Bus Universel en Série” in French);

- HDMI interface (from the English “High Definition Multimedia Interface”, or “Interface Multimedia Haute Definition” in French);

- LIN interface (from English “Local Interconnect Network”, or in French “Réseau interconnecté local”).

Data, such as for example a signal indicating under-inflation, are for example loaded to the device 2 via the interface of the block 22 using a Wi-Fi® network such as according to IEEE 802.11, an ITS G5 network based on IEEE 802.11p or a mobile network such as a 4G (or 5G) network based on the LTE (Long Term Evolution) standard defined by the 3GPP consortium, in particular an LTE-V2X network.

According to another particular and non-limiting example of embodiment, the device 2 comprises a communication interface 23 which makes it possible to establish communication with other devices (such as other computers of the on-board system) via a communication channel 24. The communication interface 23 corresponds for example to a transmitter configured to transmit and receive information and/or data via the communication channel 24. The communication interface 23 corresponds for example to a CAN type wired network (from the English “Controller Area Network” or in French “Réseau de controlleres”), CAN FD (from the English “Controller Area Network Flexible Data-Rate” or in French “Réseau de controllers à flow flexible data”), FlexRay ( standardized by the ISO 17458 standard) or Ethernet (standardized by the ISO/IEC 802-3 standard).

According to a particular and non-limiting embodiment, the device 2 can provide output signals to one or more external devices, such as a display screen 25, touchscreen or not, one or more speakers 26 and/or other peripherals 27 (contact sensor) via output interfaces 28, 29 and 30 respectively. According to a variant, one or the other of the external devices is integrated into the device 2.

Claims (6)

Method for assisting in changing the unit of a device for displaying the speed of a vehicle comprising a touch screen (11) displaying a graphic interface, said graphic interface comprising a first graphic object (31) permanently displayed, when the screen (11) is on, and displaying at least the speed of the vehicle and a speed unit (31.1), said interface further comprising at least one second graphic object (32) displayed ephemerally, said method comprising steps of:
- in response to detection (41) of pressing the indicator light (31.1), control (42) of the display of a third graphic object (33) covering the second graphic object (32), said third graphic object (33) comprising a page (51) for selecting a speed unit,
- in response to the detection (43) of pressing the speed unit selection page, control (44) of the display of the vehicle speed, in the first graphic object (31), according to a unit selected in the selection page. A method of assisting in changing the unit of a vehicle speed display device according to claim 1, further comprising, in response to the selection of a speed unit, deleting (45) said third graphic object (33), so as to allow said second graphic object (32) to appear. Method for assisting in changing the unit of a vehicle speed display device according to one of the preceding claims, in which the selection page comprises at least one of the following units: kilometer per hour, mile per hour, meter per second. Computer program comprising instructions which, when the program is executed by a computer, lead it to implement the method according to one of the preceding claims. Device for assisting in changing the unit of a vehicle speed display device, said device (2) comprising a memory (21) associated with at least one processor (20) configured for implementation steps of the process according to any one of the preceding claims. Vehicle comprising a screen (11) and a device (2) according to the preceding claim.