Patent Application
20240149831
This patent application claims priority from Italian patent application no. 102022000022632 filed on Nov. 4, 2022, the entire disclosure of which is incorporated herein by reference.
The present invention relates to a luminous device for turning on a road vehicle and to a relative road vehicle.
In particular, the present invention has an advantageous, but not exclusive, application in a luminous device for turning on a high-performance road vehicle, to which the description that follows will refer explicitly, but without thus losing its general nature.
As known, over recent years, totally electric vehicle systems have increasingly been gaining a foothold, meaning those with a powertrain system provided exclusively with one or more electric motors, aimed at placing an ever-increasing distance between the automobile market and the fossil fuels on which it is still heavily dependent.
These vehicles, since they do not have an internal combustion engine, no longer need the so-called “key cycle”, meaning the entire electromechanical procedure that leads to ignition of the combustion engine, such as by means of a starter motor.
In light of what has been said, in certain cases, totally electric vehicles have been developed that are configured to switch on (i.e., to activate the powertrain system and allow the gear to be engaged) automatically as soon as the presence of the vehicle key inside the passenger compartment is detected.
However, in such electric vehicles, it is basically impossible to switch off the vehicle when the driver is inside it, as it remains active and ready to depart for as long as the key is detected inside the passenger compartment. This leads to an excessive and unnecessary consumption of energy in the case of lengthy periods spent inside the vehicle, with a consequent greater wear of the electronic components responsible for supplying power to the powertrain system.
In contrast, however, vehicles have been developed on which, in order to assist drivers accustomed to the “key cycle”, an ignition button of the road vehicle is present which (always after the key has been detected inside the passenger compartment) allows power supply to the powertrain system to be activated manually and therefore the vehicle to start. In these cases, however, in the case of totally electric vehicles, due to their silence, it is not immediately clear to the driver whether the vehicle is switched on and ready to depart, or whether it is necessary to press the button. In any case, on such vehicles, it is nonetheless necessary to press on the brake pedal at the same time, failing which the powertrain system will not switch on.
In general, there is a need to lengthen the autonomy of the electric road vehicle, and, at the same time to inform the driver of the state of ignition of said road vehicle in a simple and immediate manner.
The object of the present invention is to provide a luminous device for turning on a road vehicle and a relative road vehicle that are at least partially free from the problems described here above and, at the same time, are simple and cheap to manufacture.
According to the present invention, a luminous device for turning on a road vehicle and a relative road vehicle are provided according to what is claimed in the independent claims that follow and, preferably, in any one of the claims that are directly or indirectly dependent upon the independent claims.
The claims describe preferred embodiments of the present invention and form an integral part of this description.
Several embodiments of the invention will be described below for a better understanding of it, by way of non-limiting example and with reference to the attached drawings, wherein:
In
The same reference numbers and reference letters in the figures identify the same elements or components with the same function.
In this description, the term “second” component does not imply the presence of a “first” component. Such terms are, in fact, adopted as labels to improve clarity and should not be intended as limiting.
The elements and features illustrated in the different preferred embodiments, including the drawings, may be combined with or isolated from each other without deviating from the scope of protection of this application as described below.
Furthermore, the road vehicle 1 comprises a chassis (of a known type and therefore not illustrated in detail), and a vehicle dashboard 4 inside the passenger compartment and attached to the chassis. The vehicle dashboard is arranged in front of the driver and the passenger, if any.
In detail, and not in a limiting manner, the road vehicle 1 is an a entirely electric vehicle, i.e., provided with rechargeable battery pack (of a known type and therefore not further detailed below).
In particular, the road vehicle 1 comprises a powertrain system 5, which is provided with at least an electric motor and circuitry dedicated to power supply and control of said motor and of the battery pack.
The road vehicle 1 also comprises an ignition system 6 of the powertrain system 5. In other words, the ignition system 6 is configured to perform the known functions of “key-on” and “key-off”, i.e., switching on and switching off the powertrain system 5. In particular, the ignition system 6 is configured to enable power supply from the battery pack to the powertrain system 5.
The ignition system 6 preferably comprises a luminous device 7 (integrated into the road vehicle 1 and not removable).
In the non-limiting embodiments of the
In the non-limiting embodiments of
In the non-limiting embodiments of
In the non-limiting embodiments of
Advantageously but not in a limiting manner, the ignition system 6 comprises a detection system 10 (preferably wireless, for example RFID, Wi-Fi or Bluetooth®), which is configured to detect the presence or absence of a key (not illustrated, conventional or possibly integrated into a mobile telephone, into a ring, or into a bracelet) at (or in) the passenger compartment 3.
In addition, the ignition system 6, i.e., the road vehicle 1, comprises a control unit 11, which is connected to the detection system 10 and to the powertrain system 5 and is configured to enable power supply from the battery pack to the powertrain system 5 exclusively when the luminous device 7 is operated (i.e., when the biometric detector 8 recognises the driver DR as an individual entitled to drive and previously registered) while the key is detected in the passenger compartment 3. In other words, in contrast with what occurs in the prior art, it is not necessary to press the brake pedal simultaneously and the vehicle is not maintained constantly switched on, pointlessly, when it is not moving.
Therefore, the control unit 11 is preferably configured to enable power supply to the powertrain system 5 without necessarily sensing the pressure of a pedal.
In other words, operating the luminous device 7 with the key inside the passenger compartment 3 is a sufficient condition to enable/supply power to the powertrain system 5.
Physically, the control unit 11 may comprise a single device or several devices separate from each other and communicating by means of the local network (such as Ethernet or CAN) of the road vehicle 1. For example, the control unit 11 may also be delegated to perform further and different activities to ignition.
As illustrated in the non-limiting embodiments of
Preferably but not in a limiting manner, as in the case of the embodiments of
In other non-limiting embodiments, such as the one illustrated in
In several non-limiting cases, the luminous device 7 is positioned on an upper portion 13 of the central tunnel 12, in a manner that the luminous device 7 is facing towards the vehicle roof 30 of the passenger compartment 3. In particular, therefore, the driver operates the luminous device 7 by placing a finger on it in the embodiment of
Advantageously but not in a limiting manner, the biometric detector 8 comprises a locking system 14 of the luminous device 7, which is configured to block the luminous device 7, in particular its switched-on or switched-off configuration, in case the speed of the road vehicle 1 is greater than zero and/or a gear is engaged. In other words, in order to be able to switch from the switched-on configuration to the switched-off configuration, it is necessary for the vehicle to be standing still and in park mode (known as P). Therefore, if the driver once again places their finger on it in the embodiment of
Advantageously but not in a limiting manner, the vehicle 1 comprises a luminous element 16 inside the passenger compartment 3 (in particular, at the dashboard 4), which is configured to assume a first colour (for example, grey or black) when the luminous device 7 is in the switched-off configuration and a second colour (for example, yellow or red) when the luminous device 7 is in the switched-on configuration.
In particular, the first colour and the second colour are different to each other. In this manner, the driver can immediately understand, both from the position of the movable part 9 and (without looking away) from the colour of the luminous element 16.
At the same time and with the same criterion, advantageously but not in a limiting manner, the ignition system 6 (in particular, the control unit 11) is configured to change the colour of at least part 17 of the luminous device 7. In other words, the luminous device 7 therefore comprises being in the switched-on configuration or in the switched-off configuration and changes colour at least in part 17.
Preferably but not in a limiting manner, the colour change controlled by the control unit 11 is from a third colour (for example, yellow or red) to a fourth colour (for example, black or grey), following operation of the luminous device 7 (in particular of correct detection by the sensor 9, 9′ or 9″) in the switched-on configuration, and vice versa when the luminous device 7 switches to the switched-off configuration.
Advantageously but not in a limiting manner, the third colour is equal to the second colour and the fourth colour is equal to the first colour. In this manner, substantially, in operating the luminous device 7, the driver perceives the change of colour from part 17 of the luminous device 7 of ignition to the rest of the road vehicle 1, in particular the luminous element 16.
In certain, non-limiting cases, the luminous element 16 is part of a control panel 18.
In other cases, preferred but also non-limiting, the luminous element 16 is a part 19 of the steering wheel 20, in particular a surface 21 arranged at a front airbag 22 (driver side).
In the non-limiting embodiment of
In the non-limiting embodiment of
In the non-limiting embodiment of
In further non-limiting cases, the third colour is equal to the first colour and the second colour is equal to the fourth colour. In this manner, in operating the luminous device 7, the driver perceives complete ignition of the road vehicle 1, starting from the object being touched (the sensor 9) or with which they interact (the sensor 9′ or 9″) up to the control panel 18.
As previously mentioned, preferably, the ignition system 6 does not comprise means for sensing the pressure of a pedal, in particular of a brake pedal 23. In this manner, ignition, i.e., enabling power supply to the powertrain system 5, is entirely dependent upon the configuration of the luminous device 7 (and upon the presence of the key in the passenger compartment 3), making the system simple, but comprehensible and reliable at the same time.
According to several non-limiting embodiments, such as those illustrated in the attached figures, the luminous device 7 comprises a frame 22 that surrounds the sensor 9, 9′ or 9″, preferably at least partially transparent, which is configured to switch (entirely) from the third colour to the fourth colour in switching from a switched-off configuration to a switched-on configuration.
In accordance with what has been said so far, therefore, the luminous device 7 also comprises a display device 27, which is configured to assume at least partially the third colour and the fourth colour according to what has been described previously.
In accordance with what has been said so far, advantageously but not in a limiting manner, the display device 27 is configured to switch from the third colour to the fourth colour when the sensor 9, 9′ or 9″ detects a driver entitled to drive and vice versa when a new detection comparable to the previous one is made. Obviously, in the case of the embodiments of
In detail, the display device 27 corresponds with the part 17 of the luminous device 7 described above.
According to several preferred embodiments, the display device 27 comprises an electronic ink screen 28. In this manner, it is possible to reduce to a minimum the energy consumption to switch from the third colour to the fourth colour and vice versa.
According to other embodiments not illustrated, the display device 27 comprises a liquid crystal display 28 (for example, LCD or OLED). In this manner, it is possible to increase the luminosity and the flexibility in display of the contents on the screen 28, for example by adding animations.
In use, the driver enters into the passenger compartment with the key on their person, while the luminous device 7 is in the switched-off configuration having the coloured surface (of the third colour, which may also be black or transparent), for example yellow. The vehicle 1 is switched on, i.e., the control unit 11 enables power supply to the powertrain system 5, by operating the luminous device 7, i.e., with fingerprints, face, eyes or audio.
As soon as the detection system 10 detects the key and the sensor 9, 9′ or 9″ detects an entitled driver, the switched-on configuration is enabled and is blocked by the locking system 14, part 17 changes colour, for example becomes black, and for example the surface 21 of the steering wheel 20 switches from black to yellow, indicating to the driver that the vehicle is effectively switched on and that it is possible to engage a gear and operate the powertrain system 5. In the same manner, in order to switch off the road vehicle 1, for example when it is in park mode, it is possible to have the sensor 9, 9′ or 9″ detect once again a driver entitled to switch to the switched-off configuration. As soon as the sensor 9, 9′ or 9″ detects an entitled driver, the vehicle 1 returns to the switched-off configuration, the luminous device 7 once again assumes, for example thanks to the screen 28 or to one or more LEDs, the colour yellow for example, and the surface 21 of the steering wheel 20 turns black again.
Obviously, the colours indicated are simply examples and can be replaced with other colours. In certain cases, said colours may also be set by the driver, based on their own preferences.
Although the invention described here above makes particular reference to an example of a precise embodiment, it is not to be considered as limited to said example of an embodiment, as its scope includes all those variants, changes or simplifications covered by the attached claims, such as, for example, a different type of road vehicle (such as front-wheel drive), a different shape of the passenger compartment, different locking systems, a different type of screen, etc.
The vehicle and the luminous device described above offer numerous advantages.
In the first place, they allow a simple and immediate indicator of the state of ignition of the vehicle to be provided to the driver.
Furthermore, they allow saving of the charge of the vehicle battery pack when the vehicle is not moving, as it is possible to switch off the vehicle 1.
A further advantage of the present invention resides in the fact that, thanks to the electronic ink screen, visibility of the colour and its opacity is maximised.
In addition, the locking system avoids sudden and involuntary switching off of the road vehicle, thus maintaining appropriate safety.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102022000022632 | Nov 2022 | IT | national |
