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Motorcycle Brake GTR

Motorcycle Brake GTR. Progress report to 50/GRRF. Report items High speed test evaluation Control layouts Pre-burnishing test Maximum and minimum lever force efforts Status of IMMA work and future actions. High Speed Test (IMMA's severity comparison of FMVSS/ ECE/ Japan).

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Motorcycle Brake GTR

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  1. Motorcycle Brake GTR Progress report to 50/GRRF

  2. Report items • High speed test evaluation • Control layouts • Pre-burnishing test • Maximum and minimum lever force efforts • Status of IMMA work and future actions IMMA Brake Harmonization Task Force

  3. High Speed Test (IMMA's severity comparison of FMVSS/ ECE/ Japan) IMMA Brake Harmonization Task Force

  4. <Objective> To analyse the relative severity of the braking performance during the high-speed tests in FMVSS, ECE and Japan. To establish the high-speed test procedure suitable for GTR. <Items Covered> (1) Comparison of requirements regulated in FMVSS/ECE/Japan (2) Summary of the most severe requirements for the high-speed tests IMMA Brake Harmonization Task Force

  5. (1) Comparison of requirements in FMVSS/ECE/Japan ＜FMVSS＞ ＜ECE＞ ＜Japan＞ Test condition ・Weight unladen ← ← ・Control both ← ← disconnected connected ・Engine ← After 1 mile of 160km/h or full accel. Vmax * 0.8, ・Speed ← Up to a max of whichever is less 192 km/h ObjectiveRequirement ・Deceleration 5.4 m/s2 No 5.8 Behaviour during braking No Yes Yes IMMA Brake Harmonization Task Force

  6. (1) Comparison of requirements in FMVSS/ECE/Japan Items to be considered in the high speed test Braking force Kinetic energy Behaviour during braking 1. Severity comparison of braking force 1-a Approach The key influences on braking force are: 1) deceleration 2) engine connected or disconnected ECE has no requirement for deceleration. a. FMVSS (Engine disconnect, 5.4m/s2) b. Japan (Engine connect, 5.8m/s2) Compare FMVSS and Japan at these decelerations. IMMA Brake Harmonization Task Force

  7. (1) Comparison of requirements in FMVSS/ECE/Japan 1. Severity comparison of braking force 1-b.Severity comparison test of FMVSS and Japan Method : Compare the average control forces needed to satisfy each regulation. The higher the force, the more severe. • Weight ： unladen • Test speed ： • Engine ： • Deceleration ： FMVSS Japan 192 km/h 160 km/h disconnected connected 2 2 5.4m/s 5.8m/s IMMA Brake Harmonization Task Force

  8. (1) Comparison of requirements in FMVSS/ECE/Japan 1. Severity comparison of braking force 1-c-1.Test result (average control forces) The braking force necessary for compliance : model A : 1000 cc FMVSS Japan kgf IMMA Brake Harmonization Task Force

  9. (1) Comparison of requirements in FMVSS/ECE/Japan 1. Severity comparison of braking force 1-c-2.Test result (average control forces) The braking force necessary for compliance : model B :1000 cc FMVSS Japan kgf IMMA Brake Harmonization Task Force

  10. (1) Comparison of requirements in FMVSS/ECE/Japan 1. Severity comparison of braking force 1-c-2.Test result (average control forces) The braking force necessary for compliance : model C : 900 cc FMVSS Japan kgf IMMA Brake Harmonization Task Force

  11. (1) Comparison of requirements in FMVSS/ECE/Japan 1. Severity comparison of braking force 1-c-2.Test result (average control forces) The braking force necessary for compliance : model Ｄ :1000 cc FMVSS Japan kgf IMMA Brake Harmonization Task Force

  12. (1) Comparison of requirements in FMVSS/ECE/Japan 1. Severity comparison of braking force 1-d. Conclusion The Japanese test is more severe than FMVSS 5.8m/s2 & Engine connected IMMA Brake Harmonization Task Force

  13. 1 mv2 2 (1) Comparison of requirements in FMVSS/ECE/Japan 2. Severity comparison of kinetic energy. 2-a. Approach The key influence on kinetic energy is speed: the mass of the MC remains the same. The higher the speed, the more severe. ＜GTR＞ unladen both connected 2-b. Severity comparison of FMVSS and Japan FMVSS : 192km/h Japan : 160km/h 2-c. Result FMVSS is more severe than Japan. After 1 mile of full accel. up to a max of 192 km/h. 5.8 IMMA Brake Harmonization Task Force ?

  14. (1) Comparison of requirements in FMVSS/ECE/Japan 3.Severity comparison for vehicle behaviour • Stable behaviour in the high-speed (160km/h) test is required in both ECE 78 and Japan’s regulation. GTR unladen both connect 160km/h or The assessment is made from 160km/h Vmax * 0.8, whichever is less 5.8 Yes IMMA Brake Harmonization Task Force

  15. (2) Summary of the most severe requirements in the current high-speed tests ＜GTR＞ Test condition ・Weight unladen ・Brakes both ・Engine connected 192km/h or Vmax * 0.8, ・Speed whichever is less Requirement 5,8 (m/s2) ・Deceleration ) ・Behaviour Yes IMMA Brake Harmonization Task Force

  16. Report items (continued) • High speed test evaluation • Control layouts: • Brake by wire gives new possibilities • Overlap with GRSG • Burnishing and the pre-burnishing test • Maximum and minimum lever force efforts • Status of IMMA work and future actions IMMA Brake Harmonization Task Force

  17. Status of IMMA work and future activities • Severity comparisons completed on: • Dry test, heat-fade test, wet test and high speed test • Now examining the general specifications • Target: an outline of the technical requirements for a GTR at 51/GRRF IMMA Brake Harmonization Task Force

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