JP4789094B2 - Display device for hybrid vehicle - Google Patents

Description

  The present invention relates to a display device for a hybrid vehicle, and relates to a display device having a fixed scale representing different driving states of the hybrid vehicle.

  Patent Document 1 discloses a display device having a combination of two superimposed display elements. One of these display elements is a variable scale, and the second display element is a needle that can move along this scale. This is intended to display different driving or charging states of the hybrid vehicle. However, the drawback of this prior art is that it is difficult to interpret the display device, so that the viewer may not be able to understand in some cases.

  Similarly, Patent Document 2 discloses a display device incorporated in a tachometer, but this display device merely indicates whether or not the hybrid vehicle is traveling in an electric operation mode. It is.

US Pat. No. 6,480,106 B1 US Pat. No. 7,091,839 B2 US Pat. No. 6,794,853 B2 Japanese Patent Application Laid-Open No. 07-315078 JP 2006-290182 A German Patent No. 19533829

  An object of the present invention is to provide a display device for a hybrid vehicle that can be read quickly and easily.

  This object is achieved according to the invention by the subject matter of independent claim 1. Advantageous embodiments are the subject matter of the dependent claims.

  The present invention is based on the general idea of providing a display device having a fixed scale and a display element that can move along the scale in a hybrid vehicle, usually having an internal combustion engine and an electric motor. The scale is used to display different operating states of the hybrid vehicle, in particular each drive mode, i.e. whether the hybrid vehicle is driven by electric drive, internal combustion engine drive or mixed drive. In this case, the scale is preferably divided into at least two main regions adjacent to each other. One of the main areas displays a braking area where the hybrid vehicle is braked by, for example, a conventional brake or a generator, and the other main area indicates that the hybrid vehicle is operated by, for example, an internal combustion engine, an electric motor, or a prime mover replacing it. The driving area driven by is displayed. In this case, the scale is preferably configured in an arc shape, and has a radius that intersects the rotation axis of the display element, at least when the display element is configured as a conventional pointer. With this display device, the viewer can directly and very easily perceive which driving state the hybrid vehicle is currently in, that is, which driving method the hybrid vehicle is currently using. Furthermore, the viewer can, for example, determine whether the vehicle battery required for driving the electric motor is currently being charged, what state the battery is in, or, for example, if the current electrical energy is drawn from the vehicle battery. It is possible to quickly and easily perceive whether or not there is. Although this display device can be made relatively small, it can be easily integrated into the dashboard or cockpit of a hybrid vehicle, but the visual representation of the hybrid vehicle's operating state allows the viewer to quickly overview the current driving state. It becomes like this.

  In one advantageous embodiment of the solution according to the invention, the display element is configured as a conventional needle or simply a pointer that is displayed visually. Thus, depending on the level of equipment and the required degree of technical complexity, the display element can be configured as a guide to a conventional system, for example a conventional speedometer, or otherwise It is also possible to construct the symbol as a pointer that is displayed visually, for example, by a corresponding light beam. Also, a complete electronic display, i.e. an electronic display in which the pointer does not exist in physical form as on the display device, but is simply displayed visually by the corresponding visual element in this case. Of course it is possible. Furthermore, such a display device allows a high degree of diversity, for example the color tone, contrast or brightness of such a display device can be easily modified. In this case, it is not always necessary to form the fixed scale in an arc shape. Instead, it is of course possible to form the fixed scale in a substantially linear form along which the display element or the pointer moves. .

  Further important features and advantages of the invention emerge from the dependent claims, the drawings and the associated description based on the drawings.

  It will be appreciated that the features described above and those described below can be used not only in the respective combinations defined, but also in other combinations or alone without departing from the scope of the present invention. .

  Preferred exemplary embodiments of the invention are represented in the drawings and are described in detail below. In the following description, the same reference signs represent the same, similar or functionally identical components. Each drawing is a schematic view.

1 shows a display device according to the invention when a hybrid vehicle is in a certain driving state. 2 shows a display device according to the invention in another driving state of a vehicle. Fig. 3 shows a display device according to the invention in yet another driving state of a vehicle. Fig. 3 shows a display device according to the invention in yet another driving state of a vehicle. Fig. 4 shows a display device according to the present invention with another pointer. Fig. 3 shows a display device according to the invention in yet another driving state of a vehicle. Fig. 3 shows a display device according to the invention in yet another driving state of a vehicle. The status or state of each component is shown in a table.

  1 to 7, the display device 1 of the present invention for a hybrid vehicle has a fixed scale 2 and a display element 3 that can move along the scale 2. In the case of this display device, the display element 3 is configured as a conventional pointer in FIGS. 1 to 4 and FIGS. 6 and 7, and the display element 3 of FIG. 5 is configured as a pointer that is merely displayed visually. . In all the embodiments shown in FIGS. 1 to 7, the scale 2 has an arc shape, but it is naturally conceivable to configure the scale 2 in a bar system (band shape).

  The scale 2 is divided into at least two main regions 4 and 5. The main area 4 extends from the character F (included) to A (not included), and the main area 5 extends from the character A (not included) to D (included). In this case, the main region 4 represents a braking region in which the hybrid vehicle is braked by a conventional brake or generator, and the main region 5 is a hybrid vehicle in which the internal combustion engine and / or another drive device instead, for example, It represents a drive region driven by an electric motor. The transition between the main area 4 and the main area 5 is represented by the letter A in the figure. With the display device 1 according to the present invention, the viewer can easily and quickly perceive which driving state the hybrid vehicle is currently in, particularly which driving method the hybrid vehicle is currently using.

  The display device 1 includes another symbol, for example, a battery charge display unit 6 that displays the current state of charge of the battery, or otherwise, when the temperature exceeds and / or falls below a predetermined value. Of course, it is also possible to display the temperature representation 7 (see FIGS. 5 and 6) for displaying the vehicle battery limited operation mode. In this case, the temperature representation 7 may alternatively be configured as a frozen representation that is normally lit only when there is an excessively low temperature that can adversely affect battery performance. Furthermore, the battery charge state at the present time of the vehicle battery can be quantitatively displayed by a corresponding bar inside the battery charge display unit 6.

  1 to 7, it can be seen that the braking area, that is, the first main area 4 has a first sign F, a second sign E, and areas F to E between them. In this case, the first indicator F represents braking of the hybrid vehicle, preferably exclusively by conventional vehicle brakes. In the case of the first sign F, the braking ratio of the generator is extremely small. In contrast, the second sign E indicates the start of braking by a conventional vehicle brake, so that the conventional brake does not operate in the region between A (included) and E (included). In contrast, in the regions F (including) to E (not including), the mixed braking operation mode, i.e. the combined braking with the generator and the conventional brake, is displayed. In this case, the braking ratio of the generator decreases in the direction of the sign F, while the braking ratio of the conventional vehicle brake increases in the direction of the sign F.

  A third marker A is arranged at a transition portion between the main region 4 and the main region 5, that is, a transition portion between the braking region and the drive region. Between the third sign A and the second sign E, there are areas A (not included) to E (included), in which the hybrid vehicle is braked exclusively by the generator. That is, the conventional vehicle brake is not interposed here. Generally, in the regions A to F, when the vehicle battery can absorb current, the vehicle battery is charged by the braking effect of the generator.

  According to FIG. 4, the drive region, that is, the second main region 5 includes a fourth sign B and areas A to B between the fourth sign B and the third sign A. In this case, the third indicator A not only displays the transition between the main region 4 and the main region 5 (see FIG. 3), but also displays the non-operating position of the electric motor or generator. In this case, it is also possible to integrate these two devices into a single device. Therefore, on the right side of the third sign A, the electric motor is switched on as an electrical load to drive the hybrid vehicle, while on the left side of the third sign A, the generator serves as an electrical energy generator. Switched on, thereby charging the vehicle battery and braking the hybrid vehicle. For this reason, in regions A (not including) to B (including), pure electric motor driving of the hybrid vehicle is performed. In this case, the capacity utilization of the electric motor increases in the direction of the sign B. When the fourth mark B is exceeded, the internal combustion engine is started.

  The second main region 5 further includes a fifth label C and regions B (not included) to C (included) between the fifth label C and the fourth label B. These areas B to C display mixed driving, that is, driving of the hybrid vehicle by the internal combustion engine and the electric motor. In this case, the capacity utilization of the internal combustion engine increases in the direction of the label C. It is understood that this capacity utilization is a torque ratio or an output ratio. Further, the second main region 5, that is, the drive region includes a sixth label D and regions C (not included) to D (included) between the sixth label D and the fifth label C. This area indicates the fully discharged state of the vehicle battery and thus pure internal combustion engine drive. When the sign C is reached, the electric motor is usually already switched off or reduced in power, so a pure internal combustion engine drive is expected in the areas C (not included) to D (included). The In the area of the sign C, the drive output of the internal combustion engine is lower than in the area of the sign D. FIG. 7 shows in this situation a barless battery charge display 6 which indicates that the battery is discharged and cannot contribute to the driving of the hybrid vehicle by the electric motor. In this region, for example, if the internal combustion engine is not operating at full load, the vehicle battery can naturally be charged by the internal combustion engine.

  FIG. 8 again shows the position of the display device in tabular form, corresponding to the area or sign and the status or condition of the various elements of the hybrid vehicle. In this table, the first column indicates the corresponding region or sign of the display device, and the second, third, and fourth columns are specific components when the display device displays the corresponding region or sign, respectively. And shows the operating state of the assembly. Finally, the last column schematically shows the meaning of the respective position of the display element of the display device, for example the position of the indicator hand. In this case, the corresponding transition between the areas of the display device is labeled with an arrow indicating the upper or lower row, similar to the indicator on the display device.

  As described above, the display device 1 according to the present invention makes it possible to display the current driving state of the hybrid vehicle in a form that can be easily perceived, so that a result that is highly acceptable to consumers can be realized. In particular, such a display device 1 makes it possible for a user with low technical proficiency to immediately grasp the driving state of the hybrid vehicle simply by looking at the display device 1 for a short time.

1: Display device, 2: Fixed scale, 3: Display element, 4, 5: Main area (braking area, driving area)

Claims (11)

A display device (1) for a hybrid vehicle having a fixed scale (2) representing different driving states of the hybrid vehicle and a display element (3) capable of moving along the scale (2),
The scale (2) is divided into at least two main areas (4, 5). The two main areas include a braking area (4) where the hybrid vehicle is braked by a vehicle brake or a generator and a hybrid vehicle. A drive region (5) driven by one or both of an internal combustion engine and another alternative drive device instead ,
The braking area (4) has a first sign (F), a second sign (E), and a first area (FE) between them,
The first sign (F) represents braking by a vehicle brake exclusively,
The second indicator (E) displays the start of braking by the vehicle brake,
The first region (F to E) is a display device (1) for displaying a mixed braking operation mode including the generator and a vehicle brake . Wherein the display element (3) is, pointer, or simply display device according to claim 1 which is realized by the guidance is visually displayed.   The display device according to claim 1 or 2, wherein the display device (1) has a battery charge display unit (6) for displaying a current charge state of the battery.   The display device according to any one of claims 1 to 3, wherein the display device (1) has a temperature representation (7) for displaying a limited operation mode of the vehicle battery when the temperature falls below a predetermined value. .   The display device according to any one of claims 1 to 4, wherein the drive region (5) is adjacent to the braking region (4) on the scale (2). The braking area (4) has a third sign (A) and a second area (A to E) between the third sign (A) and the second sign (E);
The third indicator (A) displays a transition portion between the braking region and the driving region,
Said second region (A-E), the display device according to claim 1 for displaying the braking by only the generator. The drive region (5) has a fourth label (B) and a third region (AB) between the fourth label (B) and the third label (A);
The third indicator (A) represents the start of the electric motor, while the fourth indicator (B) indicates the start of the internal combustion engine,
The display device according to claim 6 , wherein the third area (A to B) displays pure electric motor drive, in which case the capacity utilization of the electric motor increases in the direction of the fourth sign (B). . The drive region (5) has a fifth label (C) and a fourth region (B to C) between the fifth label (C) and the fourth label (B);
The fifth indicator (C) indicates that the ratio of pure internal combustion engine drive or electrical system is negligible,
The fourth region (B-C) displays a mixed driving display device according to claim 1 or 7 increases in the direction of capacity utilization is the fifth label of said internal combustion engine (C). The drive region (5) has a sixth label (D) and a fifth region (C to D) between the sixth label (D) and the fifth label (C);
The sixth indicator (D) displays the complete discharge state of the vehicle battery,
Display according to claim 8 , wherein the fifth region (C-D) displays pure internal combustion engine drive, in which case the capacity utilization of the internal combustion engine increases in the direction of the sixth indicator (D). apparatus. A display device (1) for a hybrid vehicle having a fixed scale (2) representing different driving states of the hybrid vehicle and a display element (3) capable of moving along the scale (2),
  The scale (2) is divided into at least two main areas (4, 5). The two main areas include a braking area (4) where the hybrid vehicle is braked by a vehicle brake or a generator and a hybrid vehicle. A drive region (5) driven by either or both of an internal combustion engine and another drive comprising an electrical system;
  The drive region (5) is a first label (C), a second label (B), and a first region (B to C) between the first label (C) and the second label (B). )
  The first indicator (C) indicates that the ratio of pure internal combustion engine drive or electrical system is negligible,
  The second indicator (B) indicates the start of the internal combustion engine;
  The first region (B to C) displays a mixed drive of the internal combustion engine drive and the electric system drive, and the capacity utilization of the internal combustion engine increases in the direction of the first indicator (C). . A display device (1) for a hybrid vehicle having a fixed scale (2) representing different driving states of the hybrid vehicle and a display element (3) capable of moving along the scale (2),
  The scale (2) is divided into at least two main areas (4, 5). The two main areas include a braking area (4) where the hybrid vehicle is braked by a vehicle brake or a generator and a hybrid vehicle. A drive region (5) driven by either or both of an internal combustion engine and another drive comprising an electrical system;
  A first indicator (A) indicating a transition between the braking region and the driving region; a second indicator (E) in the braking region; and a third indicator (B) in the driving region. ,
  The braking area displays braking by only the generator in the first area (A to E) between the first sign (A) and the second sign (E), and is adjacent to the first area. In the area (E to F), the mixed braking of the vehicle brake and the generator is displayed,
  The driving area displays driving by only an electric motor in a third area (A to B) between the first sign (A) and the third sign (B), and a fourth area adjacent to the third area. A display device that displays the mixed drive of the electric motor drive and the internal combustion engine drive in the region (B to C).

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