Open architecture vehicles of the future

Tesar, Delbert

doi:10.1016/j.mechmachtheory.2014.11.007

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…To determine energy losses and investigate CAE internal energy distributions, the air power is introduced in this paper, which is described by Eq. (2).…”

Section: Energy Efficiency Of the Traditional Caementioning

confidence: 99%

“…It has been reported that the pollutants produced by ICE are responsible for more than 30 % of air pollutants. To alleviate air pollution and eliminate pollutants from ICE, various alternatives, including battery power driven engines [2], hydrogen fuel cell-based engines [3], liquid nitrogen fuel power driven engines, and hybrid energy driven engines [4] and [5] have been developed. However, looking at these various alternatives, each option has its limitations.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Characteristics Research on Power System of a Four-Valve of Compressed Air Engine

2018

SV-JME

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To alleviate air pollution and eliminate pollutants from internal combustion engines, many researchers have paid more attention to compressed air engines (CAEs). However, the low energy utilization efficiency and low output power of a CAE hinder its development. In this paper, a new kind of CAE, which has four valves is proposed, which reduces the kinetic energy of the flowing air. Through analysis of the CAEs, a mathematical model of the working processes was developed. Using the simulation method, the performance of the new kind of CAE was obtained. To verify the theoretical model, a prototype of a four-valve of single cylinder piston type CAE was designed, and the experiment was carried out. Parameter influence analysis and optimization were studied to improve the four-valve CAE performance. Results show that, first, the output torque and output power of the four-valves of CAE are higher than of the two-valves of CAE. When the intake pressure is set at 0.6 MPa and 0.7 MPa, and the rotation speed is 450 rpm, the output torque of the four-valve of CAE is about 2.7 and 2.2 times that of the twovalve of CAE. The output torque and power differences between the two kinds of CAE ascend sharply with increased rotation speed. Second, the energy efficiency and output power are impacted significantly by the intake valve close angle and exhaust passage diameter. Thirdly, the optimization of the four-valve CAE can significantly enhance the output power compared with two-valve CAE. This research can be referred to in the design of the CAEs.

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“…To determine energy losses and investigate CAE internal energy distributions, the air power is introduced in this paper, which is described by Eq. (2).…”

Section: Energy Efficiency Of the Traditional Caementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics Research on Power System of a Four-Valve of Compressed Air Engine

2018

SV-JME

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show abstract

“…With the continuous development of social economy and the deteriorating ecological crisis, the energy dilemma is becoming increasingly serious, especially in the automobile industry [1]. The pressure from higher fossil fuel price and stricter legislation for green gas emissions are driving the transportation market towards electric solutions, which provide more efficient and environment-friendly passenger vehicles.…”

Section: Introductionmentioning

confidence: 99%

Energy management and shifting stability control for a novel dual input clutchless transmission system

Walker

et al. 2019

Mechanism and Machine Theory

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A dual input clutchless transmission system based on automated manual transmission (AMT) structure is proposed for pure electric vehicles. In order to fully exploit the potential of the powertrain system, an energy management strategy (EMS) is developed to determine the power distribution between two motors and the optimal gear state. A mathematical model is built to minimize the energy consumption of the motors at each instant based on the motor efficiency maps. However, the proposed EMS in line with other energy oriented strategies often lead to excessive gear shifting and compromised drivability. To avoid the undesired gear shifting, a shifting stabilizer is built in the EMS objective function to improve shifting quality. Accordingly, to achieve a balance between the energy consumption and the drivability, a multi-objective optimization method is adopted to reduce the unnecessary shifting events while minimizing energy consumption. Two driving cycles representing typical daily driving conditions are used to demonstrate the effectiveness of the proposed system in terms of energy efficiency and shifting stability.

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Uncertainty analysis of vehicle fuel consumption in twin-roller chassis dynamometer experiments and simulation models

Lourenço

Eckert²,

Silva³

et al. 2023

Mechanism and Machine Theory

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Open architecture vehicles of the future

Cited by 3 publications

References 15 publications

Dynamic Characteristics Research on Power System of a Four-Valve of Compressed Air Engine

Dynamic Characteristics Research on Power System of a Four-Valve of Compressed Air Engine

Energy management and shifting stability control for a novel dual input clutchless transmission system

Uncertainty analysis of vehicle fuel consumption in twin-roller chassis dynamometer experiments and simulation models

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