Search for dissertations about: "high speed braking"
Showing result 1 - 5 of 22 swedish dissertations containing the words high speed braking.
-
1. Towards enhanced mechanical braking systems for trains. Thermomechanical capacity of wheel treads at stop braking
Abstract : Modern trains are equipped with different braking systems, between which the braking effort can be distributed. Among these, tread braking is still the most common system for friction braking. Tread brake systems are cheap and robust. READ MORE
-
2. Improving emergency braking performance of heavy vehicles
Abstract : Previous studies by the Cambridge Vehicle Dynamics Consortium (CVDC) have suggested that, by improving the control bandwidth of conventional Heavy Goods Vehicle(HGV) brake actuators and using a ‘slip control’ braking strategy, HGV stopping distances could be reduced by up to 30% over existing systems. The work covered in this thesis looks to: validate the CVDC’s previous braking performance predictions through Hardware-in-the-Loop (HiL) simulation, investigate how in-plane tyre dynamics may influence such a system’s performance, develop and build a next generation high-bandwidth braking system for vehicle implementation and carry out comparative back-to-back vehicle tests between the new system and commercially available HGV ABS. READ MORE
-
3. On Traffic Situation Predictions for Automated Driving of Long Vehicle Combinations
Abstract : The introduction of longer vehicle combinations for road transports than are currently allowed is an important viable option for achieving the environmental goals on transported goods in Sweden and Europe by the year 2030. This thesis addresses how driver assistance functionality for high-speed manoeuvring can be designed and realized for prospective long vehicle combinations. READ MORE
-
4. Frequency sweep approach to brake judder
Abstract : .... READ MORE
-
5. Tread Braking of Railway Wheels - Noise-related Tread Roughness and Dimensioning Wheel Temperatures
Abstract : Block braking is a commonly used braking system for freight wagons and other types of railway vehicles. One or several brake blocks are pressed against the tread (running surface) of the wheel, which is also in rolling contact with the rail. READ MORE