Engine Operated Screwjack

Automobiles prove to be the heart of locomotion. Even after decades of this industry appearance, one issue which was never solved is the avoidance of flat tyres. A long drive might be a soothing one to the heart but a flat tyre on such a drive collapses everything. Even a flat tyre on the way to the office may cause the day sick. There is no way out but to call a mechanic or in case of barren roads, change the tyre ourselves. Present day methods for changing the tyre requires a lot of mechanical power which may prove to be difficult for the weak and old people. To overcome this problem, an automatic engine operated screw jack is designed which outweighs the pneumatic and electrical automatic system in various aspects like reliability, maintenance, cost etc. This device uses only the engine power to lift the car in any terrain and altitude. An engine was selected for this purpose to work on and its characteristics were studied. Based on the result it proves that the device will be a success upon installation on any type of vehicle. Even heavy duty vehicles like trucks, lorry, and buses can be lifted at a very minimal cost. The device will be of low maintenance and the initial cost is also low when regarding its use. It is a onetime installation and so no recurrent cost needed at the time of puncture.

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Driver Evaluation in Heavy Duty Vehicles Based on Acceleration and Braking Behaviors

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society ◽

10.1109/iecon43393.2020.9255274 ◽

2020 ◽

Author(s):

Mehmet Emin Mumcuoglu ◽

Gokhan Alcan ◽

Mustafa Unel ◽

Onur Cicek ◽

Mehmet Mutluergil ◽

...

Keyword(s):

Heavy Duty ◽

Heavy Duty Vehicles

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Dual Stage Multilevel Control for Heavy Duty Vehicles under Different Traffic Conditions

IFAC-PapersOnLine ◽

10.1016/j.ifacol.2020.12.896 ◽

2020 ◽

Vol 53 (2) ◽

pp. 13850-13854

Author(s):

P. Polverino ◽

I. Arsie ◽

C. Pianese

Keyword(s):

Heavy Duty ◽

Traffic Conditions ◽

Dual Stage ◽

Heavy Duty Vehicles

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Parameter Estimation of a Countershaft Brake for Heavy-Duty Vehicles with Automated Mechanical Transmission

Processes ◽

10.3390/pr9061036 ◽

2021 ◽

Vol 9 (6) ◽

pp. 1036

Author(s):

Yunxia Li ◽

Lei Li

Keyword(s):

Parameter Identification ◽

Least Squares ◽

Dynamic Model ◽

Control Flow ◽

Mechanical Transmission ◽

Equivalent Resistance ◽

Heavy Duty ◽

Characteristic Parameters ◽

Resistance Torque ◽

Heavy Duty Vehicles

A countershaft brake is used as a transmission brake (TB) to realize synchronous shifting by reducing the automated mechanical transmission (AMT) input shaft’s speed rapidly. This process is performed to reduce shifting time and improve shifting quality for heavy-duty vehicles equipped with AMT without synchronizer. To improve controlled synchronous shifting, the AMT input shaft’s equivalent resistance torque and the TB’s characteristic parameters are studied. An AMT dynamic model under neutral gear position is analyzed during the synchronous control interval. A dynamic model of the countershaft brake is discussed, and its control flow is given. The parameter identification method of the AMT input shaft’s equivalent resistance torque is given on the basis of the least squares algorithm. The parameter identification of the TB’s characteristic parameters is proposed on the basis of the recursive least squares method (RLSM). Experimental results show that the recursive estimations of the TB’s characteristic parameters under different duty cycles of the TB solenoid valve, including brake torque estimation, estimation accuracy, and braking intensity estimation, can be effectively estimated. The research provides some reliable evidence to further study the synchronous shifting control schedule for heavy-duty vehicles with AMT.

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