Recently, the development of automobile focuses on the chassis structure and motion control. However, due to the concept of smart and safe vehicle, the integrated dashboard becomes a necessary issue. The proposed system can not only represent the conventional dashboard in a digital form but also endow the system with an intelligent guidance. The statuses such as speed, battery SOC, braking, mileage, and the activation of TCS and ABS can be seen and monitored in all driving scenarios. For example, the current modern electric vehicles face the danger of self-ignition problem when the over load problem is consisted. Basically, these severe conditions can be eliminated by a guard of smart interface. Consequently, under a proper design, the presented system can assist the driver to maintain the energy efficiency, steering stability, and so on. Then the operation procedure can be simplified and hence driver can concentrate more on steering.
Usually, a good dashboard design facilitates safe steering experiences [
To implement a graphical dashboard, many platforms can be considered, such as Android, iOS, and Windows. In order to eliminate the complicated issues on development, this paper utilized software LabVIEW on Windows to develop the dashboard, which is used on a 10-inch touch panel. Due to this feature, the whole system is flexible and can be customized. Unlike the conventional dashboard, the presented one has digital graphic for a quicker comprehension and more reliable information representation. Due to the convenience of mobile communication, the proposed approach has a very good compatibility, which has a high potential to promote the concepts on smart EVs.
The presented system is an intelligent, multipurpose, and user-friendly information revealing system, which can not only display the vehicle’s status such as speed, temperature, mileage, and functions but also show the current safety evaluations of steering. Regarding the vehicle’s motion control status [
This paper is structured as follows. Section
For chemical batteries such as lithium-ion battery, the power efficiency decays to accompany the battery’s lifetime. According to the research of Li et al. [
To ensure a safe two-dimensional operation of a four-wheel vehicle, its longitudinal motion control is fundamental. As depicted in Figure
Dynamic longitudinal model of vehicle.
Magic formula and effective traction force.
Wheel traction with magic formula
Longitudinal and lateral friction force
Although the energy consumptions of electric vehicles cannot be counted by the rest fuel like the internal combustion engine vehicles, the electricity consumptions are still of reference. Usually, the computer controlled dashboard can predict the rest mileages from the stored electricity. In addition, the cost can be obtained by how much electricity has been used in the unit of kWh. In this study, the electricity consumption in the proposed system is presented as
To develop the aforementioned dashboard for smart EVs, as mentioned in Section
The schematic system.
The status of all battery packs.
The turning angle sensor.
The display of turning status.
The vehicle speed meter.
The tire’s slip ratio.
The rearview camera.
The rearview of a reversing.
The main dashboard view.
Function indexes.
The interior battery status.
The schematic of fault diagnosis.
Note that the main contribution of this paper is not only the monitoring of system states but also the safety. In addition, the safety related information is presented in a graphical way for an easy and quick comprehension. Unlike the commercial dashboard, the presented smart system can carry out customization. Hence the system functions can be rich; however, the display can be clear and compact. The presented approach endows the dash board with a more flexible solution to enhance the driving experiences. Additionally, we know that the LabVIEW system is a bit expensive. However, it is stable and reliable. Consequently, we choose it as the platform of our smart dashboard. Basically, the presented approach can be exported to different platform such as the Microsoft or Android. Hence, readers can employ the proposed scheme to build similar systems on different platforms.
Figure
The process flowchart.
The real setup on Corsa-EV.
In this paper, an integrated dashboard for smart electric vehicles has been constructed. The proposed system can not only replace the conventional dashboard in a digital form but also endow the driving system with an intelligent guidance. Statuses such as speed, battery SOC, braking, mileage, temperature, and the activation of TCS and ABS can be seen and inspected in all driving scenarios. Additionally, this system can not only reveal the steering information but also reveal the energy saving management. By applying such information into the known energy formulation, the energy consumption can be predicted and controlled. Consequently, the contribution of the proposed system is not only focused on the information display and monitoring but also focused on an energy consultant. For example, the severe conditions such as battery short circuit can be eliminated under the protection of proposed interface. The battery’s lifetime and system’s power economy have confirmed an improvement under the proposed energy management. These evaluations have demonstrated their effectiveness and potential feasibility. Moreover, the presented system can facilitate the driver to maintain the steering safety and stability in an easier way. Then the operation procedure can be simplified and hence driver can concentrate more on steering.
Wheel inertia (motor included)
Wheel circumferential velocity
Wheel rotation
Driving torque
Wheel radius
Friction force (driving force)
Vehicle mass
Vehicle weight
Chassis velocity (vehicle velocity)
Driving resistance
Slip ratio
Friction coefficient.
The authors declare that there is no conflict of interests regarding the publication of this paper.
This work was supported by Ministry of Science and Technology (MOST) of Taiwan, under Project MOST 102-2221-E-024-014.