Design and comparison of the handling performance of different electric vehicle layouts

Novellis, Leonardo De; Sorniotti, Aldo; Gruber, Patrick

doi:10.1177/0954407013506569

Cited by 40 publications

(41 citation statements)

References 25 publications

(42 reference statements)

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“…Tyres are modelled with the Pacejka Magic Formula with variable relaxation length (Pacejka, 2006). The chassis model (including sprung and unsprung masses, steering system, suspension elasto-kinematics and tyres) has been extensively validated against experimental results obtained during different sessions at the Lommel proving ground (Belgium) under steady-state and transient conditions (skid pads and step steers), including the adoption of a steering robot for enhancing the repeatability of the experiments (De Novellis et al, 2013, 2014a, 2015.…”

Section: Vehicle Model For Controller Performance Evaluationmentioning

confidence: 99%

Integral sliding mode for the yaw moment control of four-wheel-drive fully electric vehicles with in-wheel motors

Goggia

Sorniotti

Novellis

et al. 2015

IJPT

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Fully electric vehicles with individually controlled motor drives allow the continuous actuation of direct yaw moment control in order to enhance vehicle safety and the handling performance by achieving a set of reference understeer characteristics. For applications on real vehicles, the control structure must provide ease of implementation, robustness and tunability. This paper discusses an integral sliding mode formulation for torque-vectoring control, which fulfils these requirements. The control structure is presented with reference to the vehicle cornering performance objectives, the motivation for integral sliding mode control and the selection of the controller parameters for stability and chattering avoidance. Six different manoeuvres are simulated for an in-wheel electric motor drivetrain layout. The results show that integral sliding mode control has significant benefits over a more conventional control method based on a combined feedforward and proportional-integral-derivative controller. The integral sliding mode controller does not require fine tuning of a feedforward control action and is characterised by superior tracking performance and disturbance rejection properties. Integral sliding mode for the yaw moment control of four-wheel-drive 389

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Section: Vehicle Model For Controller Performance Evaluationmentioning

confidence: 99%

Integral sliding mode for the yaw moment control of four-wheel-drive fully electric vehicles with in-wheel motors

Goggia

Sorniotti

Novellis

et al. 2015

IJPT

Self Cite

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“…[6][7][8][9][10] For two-speed transmission for EVs, the synchronizer type, the friction and oneway clutch type and the dog clutch type are being investigated. 7,8 The synchronizer type and the dog clutch type both possess the advantages of a simple 1 School of Mechanical Engineering, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea 2 Eco-Vehicle Drive Train Engineering Design Team, Hyundai Motor Company, Hwaseong, Republic of Korea structure and a relatively light weight. However, they also have the disadvantage of torque interruptions, which are inherent in manual transmissions (MTs).…”

Section: Introductionmentioning

confidence: 99%

Shift control of a dry-type two-speed dual-clutch transmission for an electric vehicle

Hong

Son

Lee

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part D:

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In this paper, a shift control algorithm to improve the shift quality was proposed for an electric vehicle with a dry-type two-speed dual-clutch transmission. To analyse the shift characteristics of the target electric vehicle, dynamic models for the two-speed dual-clutch transmission and the drivetrain were developed. Based on the dynamic models, dynamic equations for the transient shift states were derived, and a shift performance simulator was constructed. From analysis of the transient shift state, it was found that the fluctuations in the driveshaft torque, which cause the shift quality to deteriorate, occurred as a result of the inertia torque. Based on the analytical results, a control algorithm was proposed using traction motor torque control as well as shift actuator stroke control. For traction motor control, a compensation torque was applied during the inertia phase. In that phase, actuator stroke control was performed by considering the torque margin and the kissing point during the torque phase instead of the existing map-based control. To evaluate the performance of the proposed control algorithm, a test bench for the target electric vehicle was developed. From the experimental results, it was found that the variations in the driveshaft torque and in the jerk were reduced by the proposed control algorithm, which thereby provides an improved shift quality.

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“…As the name implies, an electric vehicle is driven by the electric energy stored in batteries [2][3][4]. Theoretically, the electric vehicle requires no transmission, for the traction motor, featuring a wide speed range and a large driving torque, can be driven from zero speed under load [5,6]. In practice, however, it is too complex and costly to adopt a reducer with fixed speed ratio.…”

Section: Introductionmentioning

confidence: 99%

Clutch Displacement Servo Control in Gear-Shifting Process of Electric Vehicles Based on Two-speed DCT

Liu¹,

Ren²,

Song³

2017

AMA_C

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Two-speed dual-clutch transmission (DCT) is an ideal transmission mode for electric vehicles. After analysing the power transmission system of electric vehicles installed with two-speed DCT, this paper constructs the lever spring model of dual dry clutch, torque transmission model of friction plate, and clutch actuator model, and utilizes the models to identify the relationship between torque transmission and release bearing displacement of the clutch. According to the nonlinear features of the clutch, the author proposed the strategy of clutch displacement servo control under the inspiration of single-neuron adaptive PID compensation, which improves clutch control accuracy by intelligent compensation based on mathematical model control. Finally, an actual vehicle test was carried out to verify the effectiveness of the proposed strategy. Suffice it to say that the study provides a reference for the control of electric vehicle transmission system.

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Design and comparison of the handling performance of different electric vehicle layouts

Cited by 40 publications

References 25 publications

Integral sliding mode for the yaw moment control of four-wheel-drive fully electric vehicles with in-wheel motors

Integral sliding mode for the yaw moment control of four-wheel-drive fully electric vehicles with in-wheel motors

Shift control of a dry-type two-speed dual-clutch transmission for an electric vehicle

Clutch Displacement Servo Control in Gear-Shifting Process of Electric Vehicles Based on Two-speed DCT

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