CN-224227602-U - Road construction machine

Abstract

The present utility model relates to a road construction machine comprising an electric drive device, a rechargeable battery for supplying an electric current to the electric drive device, a charging device for connecting the rechargeable battery to an external current source and charging the rechargeable battery, and a display device for displaying information indicating a state of charge of the rechargeable battery and/or information indicating a charging process of the rechargeable battery.

Inventors

• S. Coster
• A. Oyle
• B. Edman
• J. Pontius

Assignees

• 约瑟夫福格勒公司

Dates

Publication Date

20260512

Application Date

20240927

Priority Date

20231006

Claims (11)

1. 1. A road construction machine (100) comprising an electric drive device (104), a rechargeable battery (103) for providing current to the electric drive device, a charging device (101) for connecting the rechargeable battery to an external current source (130) and charging the rechargeable battery, and a display device (102) for displaying information indicative of the charging status of the rechargeable battery and/or information indicative of the charging process of the rechargeable battery, wherein the display device (102) is arranged at a distance of at most 1 meter or at most 0.5 meter from a connection of the charging device (101), the connection of the charging device (101) is for connecting the rechargeable battery (103) to the external current source (130) on the road construction machine (100), wherein the display device is arranged so that an operator can access or see it at any time so that the operator can recognize information indicative of the charging process and/or charging status when operating the charging device, wherein the connection and/or charging device can be arranged between 1 meter and 1 meter high from a bottom to 1.5 meter to a height of the device is measured from 1.5 meter.
2. 2. The road construction machine (100) according to claim 1, characterized in that the information indicative of the state of charge of the rechargeable battery (103) comprises at least one of an absolute charge level and/or a relative charge level of the rechargeable battery (103), an actual energy content relative to a target maximum energy content of the rechargeable battery.
3. 3. The road construction machine (100) according to any one of claims 1 to 2, characterized in that the information indicating the charging process of the rechargeable battery (103) comprises at least one of information about the start of the charging process, information about the complete completion of the charging process, information about an error in the charging process.
4. 4. A road construction machine (100) according to claim 3, characterized in that the display device (102) is adapted to output information indicative of the charging process of the rechargeable battery (103) in an alphanumeric format.
5. 5. The road construction machine (100) according to any one of claims 1 to 4, characterized in that the information indicating the charging process of the rechargeable battery (103) comprises at least one of charging efficiency, battery temperature, predicted charging time, battery status, connection status, charging current.
6. 6. The road construction machine (100) according to any of claims 1-5, characterized in that the road construction machine (100) comprises an input device (223) for an operator to interact with the display device (102) and/or for setting up functions of the road construction machine (100).
7. 7. The road construction machine (100) according to claim 6, characterized in that the function comprises a time control and/or a charging mode and/or a target state of charge of the charging process of the rechargeable battery.
8. 8. The road construction machine (100) according to claim 6 or 7, characterized in that the function comprises an operation mode of at least one working component (105) of the road construction machine (100) during the charging.
9. 9. The road construction machine (100) according to claim 8, further comprising a control unit (180) for controlling the working member (105) according to the set operation mode.
10. 10. The road construction machine (100) according to any one of claims 1 to 9, characterized in that the road construction machine is a road paver or a feed carriage or a combined road paver-feeder-construction train.
11. 11. The road construction machine (100) according to any one of claims 1-10, characterized in that the road construction machine (100) further comprises an internal combustion engine (140).

Description

Road construction machine Technical Field The utility model relates to a road construction machine having an electric drive. Background Road construction machines are well known in the art. Which includes road pavers that spread building material onto a road to be paved and finish the road surface, for example using a paving screed. A feeder is also known which can feed building material to a hopper of a road paver. Other machines or vehicles are also known which can be used for road construction, such as bulldozers. Road construction machines typically include an internal combustion engine to provide the power required for their operation and movement. Alternatively, however, a configuration is also known in which an electric drive device may be used in addition to the internal combustion engine, or the electric drive device may be used as the sole energy source of the road construction machine. However, a road construction machine that is at least partially electrically driven requires electrical energy that can be stored in a rechargeable battery of the road construction machine to perform its work. This energy must typically be provided to the rechargeable battery over a longer charge cycle, which means that using such a road construction machine requires more planning in its use, as the necessary charge cycle is longer than the time required to recharge the fossil fuel. Disclosure of utility model Therefore, based on the known prior art, the technical problem to be solved is to provide a road construction machine and a method for monitoring and/or controlling a road construction machine to simplify the use of the road construction machine. According to the present utility model, there is provided a road construction machine including an electric drive device, a rechargeable battery for supplying electric current to the electric drive device, a charging device for connecting the rechargeable battery to an external current source and charging the rechargeable battery, and a display device for displaying information indicating a state of charge of the rechargeable battery and/or information indicating a charging process of the rechargeable battery. The information indicative of the state of charge of the rechargeable battery may preferably comprise an indication of the energy content of the rechargeable battery. The information indicating the charging process of the rechargeable battery may in particular comprise information indicating a correct operation of the charging of the rechargeable battery and/or further information about the charging process, for example certain conditions of the charging process predetermined by an operator of the road construction machine. However, the present utility model is not limited thereto. Preferably, the indication information on the display device contains in particular not only binary information (charging process running or not running) but also information about the state of charge and/or technical data of the charging process, which are preferably reproduced in alphanumeric format. In particular, the information indicative of the charging process and/or the state of charge in the form of parameter values may be output as absolute values and/or relative values with respect to predefined reference values. For example, the state of charge of the rechargeable battery and in particular the energy content during charging may be output as an absolute value in the form of kWh or kJ, for example, or as a percentage relative to the maximum charge or energy content of the rechargeable battery. It is also possible to display in a combination of absolute and relative values. With such a road construction machine, the current state of the rechargeable battery and/or the charging process can be displayed to the operator in a simple manner, so that the operator can better plan or predict the operation of the road construction machine. This facilitates the operation of the road construction machine. The display device may be arranged at a distance of at most 1 meter or at most 0.5 meter from a connection of the charging device for connecting the rechargeable battery to an external current source on the road construction machine. In this case, the display means are arranged so that the operator is preferably accessible or visible at any time. This allows the operator to identify information indicative of the charging process and/or the state of charge when operating the charging device. This makes it easier for the operator to operate the charging process, for example, by connecting or removing the corresponding plug, the charging process can be started or ended, and the distance the operator has to walk is reduced. In one embodiment, the information indicative of the state of charge of the rechargeable battery comprises at least one of an absolute and/or relative state of charge of the rechargeable battery, an actual energy content relative to a target maximum energy content of t