Active Tire Pressure Control (ATPC) for Passenger Cars: Design, Performance, and Analysis of the Potential Fuel Economy Improvement

D’Ambrosio, Stefano; Vitolo, Roberto; Salamone, Nicolò; Oliva, Enrico

doi:10.4271/2018-01-1340

Cited by 6 publications

(6 citation statements)

References 10 publications

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“…Therefore, considering a tire pressure system that is used to adjust the tire pressure to a value that is maintained constant over a driving cycle, it could be useful to evaluate the overall effect of the various energy contributions on the cycles, and – as mentioned – the contribution of the slip loss energy does not result to be critical for choosing the tire pressure. Therefore, the main monotonically decreasing trend of the vehicle energy demand and of the fuel consumption as a function of the tire pressure, as shown in d’Ambrosio et al, 11,12,15 is confirmed, and the choice of the tire pressure for a driving cycle can be made considering other factors, such as the vertical load, the tire warm-up status 11,12 and the average speed of the vehicle, 11 but also taking into account the effect of the tire pressure on the vehicle braking performance and on the lateral dynamics of the vehicle. 21,22…”

Section: Resultsmentioning

confidence: 88%

“…central tire inflation systems, CTIS) generally show slow dynamics and a non-negligible energetic expense for the activation of the on-board pressure source, which makes a continuous regulation of tire pressure over a driving cycle, based on an instant-by-instant minimization of the energy losses, technically difficult and not advantageous from an energetic point of view. 12,15 Nonetheless, tire pressure systems could be used effectively to adapt the tire pressure to a certain level, which should be kept constant over the whole driving cycle.…”

Section: Introductionmentioning

confidence: 99%

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Effect of tire slip losses on the energy demand and fuel consumption of a light-duty vehicle

D’Ambrosio

Vitolo

2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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The contribution of the tire-road slip of traction wheels to the total resistance opposing the motion of a light-duty commercial vehicle has been investigated through the simulation of several homologation and custom driving cycles. The calculation of the contribution of the tire slip losses was based on the estimation of the longitudinal tire slip, by means of Pacejka’s MF5.2 tire model. In this work, the computational steps required to evaluate this contribution were implemented in a previously developed fuel consumption simulation tool. Simulations were performed under several vehicle loading conditions and tire inflation pressures on traction and non-traction wheels, and considering different tire-road adherence conditions, in order to obtain a characterization of the tire slip losses over a wide range of working conditions. An analysis of the results shows that, although the contribution of tire slip losses to the total vehicle energy demand and fuel consumption may be relevant – especially under low-load, low adherence conditions – the sensitivity of the average on-cycle vehicle energy/fuel consumption to changes in the tire inflation pressure is only affected slightly by tire slip losses. Therefore, tire slip losses can be neglected in practice, when the aim of a simulation is to optimize the tire pressure to achieve average vehicle working conditions over a driving cycle.

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Section: Resultsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Effect of tire slip losses on the energy demand and fuel consumption of a light-duty vehicle

D’Ambrosio

Vitolo

2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…The proposed control system (TIPReS) performs as an upper level controller and the components of the lower level controller, e.g. pneumatic valves and air compressor, 32,33 are not modeled for the sake of simplicity. Therefore, in the simulations, it is assumed that the optimal inflation pressure directly applies to the wheels and the proposed control system represents an ideal inflation pressure control system.…”

Section: Resultsmentioning

confidence: 99%

“…Implementing the online control system of tire pressure, depending on the scope of control strategy, can enhance vehicle’s performance, safety, and efficiency. 32 For example, Augsburg et al 33 studied the handling of a passenger car equipped with tire pressure control system and a noticeable influence on the vehicle’s transient behavior was detected. Stopping distance and climbing performance of the vehicle are largely influenced by tire inflation pressure, as outlined by Höpping and Augsburg, 34 and online adjustment of the tire inflation pressure in different road and driving conditions can improve the vehicle safety as well as its performance.…”

Section: Introductionmentioning

confidence: 99%

“…However, improving the vehicle efficiency through properly adjusting the inflation pressure is one of the main objectives of designing an active tire pressure system. 27,32 d’Ambrosio et al 35 studied the possible reduction can be achieved in fuel consumption of commercial vehicles. They also proposed a strategy to compensate the increased rolling resistance at the cold-start conditions by over-inflating the tires during the warm-up phase and notable reduction in fuel consumption was obtained.…”

Section: Introductionmentioning

confidence: 99%

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A novel method to improve vehicle energy efficiency: Minimization of tire power loss

Sina

Yazdi

Esfahanian

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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The importance of energy efficiency, as one of the most crucial issues in automotive industry, has grown more rapidly considering the global energy crisis and climate change in recent years. This paper aims to introduce a method to increase the powertrain efficiency based on the minimization of tire power loss. Slip resistance is taken into account as well as rolling resistance to yield the modified tire resistance considered in this study. It is shown that the general optimal control problem can be reduced to an instantaneous minimization problem in which the equivalent force of tire power loss is to be minimized at each instant of time. Moreover, tire inflation pressure is selected as the control input bearing its major influence on tire resistance and its potential of being controllable in the mind. In addition, a polynomial inverse tire model is developed in order to find the solution of the minimization problem with lower computational cost. The coefficients used in inverse tire model are characterized as a function of friction coefficient, normal load, and inflation pressure so that the reliability and accuracy of the model are guaranteed under different conditions. The effectiveness of the proposed online control system, called Tire Inflation Pressure Regulation System, is simulated in some driving cycles, i.e. NEDC, FTP, HWFET, and ARTEMIS-Urban, and it is shown that up to 2% improvement is achievable.

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Vertical Dynamics Control Using Active Tires and Preview

der Sande,

Kronnie

2024

Lecture Notes in Mechanical Engineering

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In this paper, the effects of adding a tire actuator to a vehicle with active suspension and preview control are studied. For the controller, the LQR method is used. The dual actuator system with preview control is compared to other conventional systems to determine the performance gain. The results show a gain of 182.3% in comfort compared to the passive suspension. The dual actuator system with preview control outperforms systems with fewer actuators and is less affected by the trade-off between handling and comfort.

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Active Tire Pressure Control (ATPC) for Passenger Cars: Design, Performance, and Analysis of the Potential Fuel Economy Improvement

Cited by 6 publications

References 10 publications

Effect of tire slip losses on the energy demand and fuel consumption of a light-duty vehicle

Effect of tire slip losses on the energy demand and fuel consumption of a light-duty vehicle

A novel method to improve vehicle energy efficiency: Minimization of tire power loss

Vertical Dynamics Control Using Active Tires and Preview

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