Online estimation for vehicle center of gravity height based on unscented Kalman filter

Deng, Zejian; Chu, Delin; Tian, Fei; He, Yi; Wu, Chaozhong; Hu, Zhaozheng; Pei, Xiaofei

doi:10.1109/ictis.2017.8047738

Cited by 12 publications

(6 citation statements)

References 8 publications

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“…With the value of the center of gravity height, the weight on the axles during braking may be calculated by deriving from equations (3) and (4). The only unknown remains the braking force, which can be calculated from equations (5) and (6).…”

Section: Calculation Of Axle Loads During Brakingmentioning

confidence: 99%

“…It is important that the speed decreases as much as possible in the shortest time and distance [2][3][4]. As specified in [5] and [6] the decrease in speed over time is defined by the braking deceleration. It is a parameter that describes the "greatness" of braking and is useful for comparing different car types under different conditions [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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The influence of the cargo weight and its position on the braking characteristics of light commercial vehicles

2019

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AbstractThe influence of the cargo weight loaded on the vehicle and the total gross mass of the vehicle on the braking characteristics is often researched from the road safety reason. However, there is not enough knowledge about the influence of weight and load distribution on the loading area of small trucks or vans on their braking characteristics. This article presents the results of measurements of braking decelerations of the van of N1 category and the braking characteristics of a vehicle loaded with different cargo mass with different cargo locations on the loading area. The impact of the longitudinal cargo position on the loading area on the load of the individual axles and thus on the braking deceleration of the vehicle was investigated. The influence of the height of the center of gravity on the dynamic axle load during braking was also determined. Method of direct vehicle deceleration measurement was used by a decelerometer. There were calculated cargo weight and cargo position influences on the dynamic axle load during braking according to the vehicle deceleration.

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Section: Calculation Of Axle Loads During Brakingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of the cargo weight and its position on the braking characteristics of light commercial vehicles

2019

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“…The maximum achievable lateral acceleration during driving depends on the coefficient of friction µ between road surface and tire. As a simplification, it can be assumed that the maximum achievable lateral acceleration due to tire forces is limited by the coefficient of friction 𝜇 in accordance with Equation (14).…”

Section: Inertia Measurementsmentioning

confidence: 99%

“…𝑎 , , 𝑔 ≤ 𝜇 (14) As long as the static stability factor is less than µ, the lateral acceleration limit for vehicle rollover is below the lateral acceleration limit for skidding. Since the observed SSF values were below the usual friction values for tire-road contact, an imminent risk of tipping of these vehicles can be assumed on dry roads.…”

Section: Inertia Measurementsmentioning

confidence: 99%

“…In addition to the classic test bench measurements, methods that enabled online calculation of the mass parameters while the vehicle is in motion were also used. Rozyn and Zhang [12], Gong et al [13], and Deng et al [14] presented methods for the online calculation of the sprung mass inertial properties by a combination of measurements of sprung mass responses to road inputs and simplified vehicle models. These methods require a certain level of vehicle-inbuilt sensor technology, which is usually available in conventional vehicles.…”

Section: Introductionmentioning

confidence: 99%

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Mass Data Measurement, Approximation and Influence on Vehicle Stability for Ultra-Light Human-Powered Vehicles

2021

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The mass properties of a vehicle play a decisive role in its dynamics and characteristics and are fundamental for vehicle dynamics models and controllers. These values are not yet known for the vehicle class of the ultra-light velomobiles and similar multi-track bicycle vehicles. In the future, however, such vehicles could play a role in reducing the CO2 emissions generated by individual transportation. As a basis for vehicle dynamics modeling, accident reconstruction, and controller development for this vehicle class, this paper investigated ranges of mass properties and their influence on vehicle stability considering driver influence. In total, 13 vehicles (10 velomobiles and 3 trikes) were examined using different experimental setups. It was shown that most vehicles exhibited understeering behavior based on the center of gravity position and calculations of the static stability factor showed significantly lower rollover stability compared with conventional vehicles. The measured moments of inertia were used to develop and examine different approximation approaches for the yaw moment of inertia using conventional approaches from the passenger car sector and stepwise regression. This created the basis for parameter estimation from easily measurable vehicle parameters and provided the possibility to generate realistic parameter sets for vehicle dynamic models. Existing tests do not consider the influence of driver movements, such as pedaling movements or possible inclination of the upper body. This offers the potential for further investigations of the dynamic influences on the investigated variables.

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Research on Active Gravity Center Fault Tolerance Control of Fuel System

Han

Zhang

Yang

2021

Lecture Notes in Electrical Engineering

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Online estimation for vehicle center of gravity height based on unscented Kalman filter

Cited by 12 publications

References 8 publications

The influence of the cargo weight and its position on the braking characteristics of light commercial vehicles

The influence of the cargo weight and its position on the braking characteristics of light commercial vehicles

Mass Data Measurement, Approximation and Influence on Vehicle Stability for Ultra-Light Human-Powered Vehicles

Research on Active Gravity Center Fault Tolerance Control of Fuel System

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