Regenerative Braking Strategies for A Parallel Hybrid Powertrain with Torque Controlled IVT

Cacciatori, Enrico; Bonnet, B.; Vaughan, N. D.; Burke, Matthew; Price, D.; Wejrzanowski, Krzysztof

doi:10.4271/2005-01-3826

Cited by 15 publications

(7 citation statements)

References 12 publications

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“…Certain efforts have recently been made on how to maximise the amount if energy recuperated during braking for different hybrid electric vehicle designs [48,49]. One approach to optimising energy recovery is through the transmission controls, such as continuously variable transmissions (CVTs) [50] and infinitely variable transmissions (IVTs) [51]. The idea underlying these studies is basically the same; in the hybrid electric vehicle driving mode, the variable transmission is controlled to maintain the IC engine on or around its optimum operating line, and so in braking it is similarly controlled to maximise energy recuperated taking into account the MG efficiency map, battery SOC and driving conditions.…”

Section: Impact On Pitch-plane Dynamics and Controlsmentioning

confidence: 99%

The impact of hybrid and electric powertrains on vehicle dynamics, control systems and energy regeneration

Crolla

Cao

2012

Vehicle System Dynamics

112

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The background to the development of so-called 'green' or 'low carbon' vehicles continues to be relentlessly rehearsed throughout the literature. Research and development (R&D) into novel powertrainsoften based on electric or hybrid technologyhas been dominating automotive engineering around the world for the first two decades of the twenty-first century. Inevitably, most of the R&D has focused on the powertrain technology and the energy management challenges. However, as new powertrains have started to become commercially available, their effects on other aspects of vehicle performance have become increasingly important. This paper focuses on the review of the integration of new electrified powertrains with the vehicle dynamics and control systems. The integration effects can be discussed in terms of three generic aspects of vehicle motions, namely roll-plane, pitch-plane, and yaw-plane, which however are strongly coupled. Topic on regenerative suspension is further discussed. It quickly becomes clear that this integration poses some interesting future engineering challenges to maintain currently accepted levels of ride, handling and stability performance.

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Section: Impact On Pitch-plane Dynamics and Controlsmentioning

confidence: 99%

The impact of hybrid and electric powertrains on vehicle dynamics, control systems and energy regeneration

Crolla

Cao

2012

Vehicle System Dynamics

112

View full text Add to dashboard Cite

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“…For the e-booster, the electric consumption is not taken into account in the calculations (free driving energy). It is assumed that recovery systems such as regenerative brakes 17,18 can produce enough electricity to respond to the e-booster demands through energy storages (i.e. supercapacitors).…”

Section: Resultsmentioning

confidence: 99%

Effect of boosting system architecture and thermomechanical limits on diesel engine performance: Part-I—Steady-state operation

Galindo

Climent

Varnier

et al. 2017

International Journal of Engine Research

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Internal combustion engines developments are focused on efficiency optimization and emission reduction. To achieve these, downsized or downspeeded engines are required which can reduce fuel consumption and CO2 emission. However, these technologies ask for efficient charging system. This paper consists of study of different boosting architectures (single stage and two stage) with combination of different charging system like superchargers, e-boosters etc. A parametric study is carried out with a 0D engine model to analyze and compare different architectures on same base engine. The impact of thermomechanical limits, turbo sizes and other engine development options characterizations are proposed to improve Fuel consumption, maximum power and performance of the downsized/downspeeded diesel engines.

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“…The total mechanical braking is applied by following the specified I-curve in the given graph. This could lead to a 12% reduction in fuel usage for HEV powertrains [12].…”

Section: Optimal Energy Recoverymentioning

confidence: 99%

Effect of Regenerative Braking on Battery Life

et al. 2023

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It is a well-known fact that automotive industries in every country are shifting towards electric vehicles (EVs) and in the days to come it is expected that the industry will become dominated by them, along with hybrid electric vehicles (HEVs). Unfortunately, the acceptance of EVs for mobility is affected by its poor range per charge. Thus, energy optimization and waste energy recuperation are currently in need. A promising method to recover energy that is lost during vehicle deceleration is regenerative braking, which extends the range of a vehicle by recovering the kinetic energy from braking and using it to recharge the battery. However, the intensity of the charging–discharging rate and the operating temperature of lithium–ion (Li–ion) batteries make them vulnerable to failure, making the rate of current delivered to the battery by regenerative braking a serious concern. Therefore, the focus of this review article is on how regenerative braking affects battery life and the precautions being taken to safeguard the battery against increased charge during regenerative braking. In this review paper, various research articles are referred to in order to examine how regenerative braking affects battery life. It is concluded that charging current obtained from long-term regenerative braking is the prominent factor in battery deterioration, regardless of the current intensity. Additionally, the rate of lithium plating is increased if the temperature and state of charge (SOC) are outside of the ideal range. By lowering the depth of discharge (DOD) and using shorter recharging times, higher levels of regenerative braking will extend a battery’s lifecycle even at high SOC and temperature.

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Regenerative Braking Strategies for A Parallel Hybrid Powertrain with Torque Controlled IVT

Cited by 15 publications

References 12 publications

The impact of hybrid and electric powertrains on vehicle dynamics, control systems and energy regeneration

The impact of hybrid and electric powertrains on vehicle dynamics, control systems and energy regeneration

Effect of boosting system architecture and thermomechanical limits on diesel engine performance: Part-I—Steady-state operation

Effect of Regenerative Braking on Battery Life

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