Advanced Vehicle Technology Episode 2 Part 4 pps

... friction ( )µ µ 1.0 0.8 0.6 0 .4 0 .2 Optimum slip ratio for TCS 1.0 0.8 0.6 0 .4 0 0 .2 0 .2 0 .4 0.6 0.8 1.0 Slip ratio ( brakin g) Slip ratio ( acceleratin g) Fig. 7. 42 Tyre grip as a function of ... conditions 26 4 Wheel tending to spin Off-side wheel BC ER SS Foot brake off MC PIV A OVC PVC P PIV RVC OVC TBC RVO TSCV TBU R TCS ECU Near-side wheel (b) Off-side spinning wheel...

Ngày tải lên: 21/07/2014, 17:20

... 16 Yaw rotation 14, 16 Yaw angle 6 24 , 625 , 626 Yoke 21 3, 21 5, 22 5 Zig-zag tyre tread pattern 28 2, 28 4 ZF AS Tronic 187 ZF Man Tip Matic 187 ZF Servotronic power assisted steering 3 54 6 54 Vane vacuum ... straight track 29 6 Oversteer 29 6, 29 8 Under steer 29 8, 29 9 Vehicle speed sensor 44 1, 44 7 Venturi 585, 586 Vortex flow path motion 103, 1 04 Vortex swirl 5...

Ngày tải lên: 21/07/2014, 17:20

... valve 44 8, 44 9 Isolating valve 43 3, 43 4 Levelling valve 4 32, 43 3 Ride height solenoid valve 44 7, 44 8 Unloaded valve 44 8, 44 9 Vehicle speed sensor 44 7 Air spring (pneumatic suspension) 44 7, 44 8 Air ... switches 44 8, 44 9 Electronic controlled system 44 7 44 8 Electronic control unit 44 7, 44 8 Engine speed sensor 44 7 Exhaust solenoid valve unit 44 8, 44 9...

Ngày tải lên: 21/07/2014, 17:20

... of 1600 120 0 800 40 0 0 0 40 80 120 160 rolling resistance Vehicle speed (km/h) low air resistance (C = 0 .25 ) D high air resistance (C = 0.5) D Resisting forces opposing motion (N) Fig. 14. 1 Comparison ... motion is vigorous a transverse vortex will be established. 14 .2 Aerodynamic drag 14 .2. 1 Pressure (form) drag (Figs 14. 12( a±e) and 14. 13) When viscous air flows over and...

Ngày tải lên: 21/07/2014, 17:20

... `open' piston to release the trailer brakes. 12. 2 .4 Towing truck or tractor spring brake three line system (Fig. 12. 4) Compressed air supply (Fig. 12. 4) Air pressure is supplied by a compressor ... enabling the reservoir to recharge. Fig. 12. 12 Quadruple circuit protection valve 5 24 Fig. 12. 18 (a±c) Spring brake hand control valve 531 Operation When the vehicle is about...

Ngày tải lên: 21/07/2014, 17:20

... required to produce a braking torque of 84 Nm. T B  2 NR ; Clamping force N  T B 2 R  84 2 Â 0:35 Â 0: 12  1000 N 11 .2. 6 Disc brake pad alignment (Fig. 11 .4) When the pads are initially applied ... and drum is 0 .4, deter- mine the radial force between the lining and drum. N   a WR r  0:8 Â 5000 Â0 :2 0 :4 Â 0:1  20 000 N or 20 kN 11 .2. 3 Shoe and brake factors (Fig...

Ngày tải lên: 21/07/2014, 17:20

... wheels. 10 .2. 4 Transverse double wishbone suspension (Figs 10 .20 , 10 .21 and 10 .22 ) If lines are drawn through the upper and lower wishbone arms and extended until they meet either inwards (Fig. 10 .20 ) ... level. 10 .2. 5 Parallel trailing double arm and vertical pillar strut suspension (Figs 10 .23 and 10 . 24 ) In both examples of parallel double trailing arm (Fig. 10 .23 ) and ve...

Ngày tải lên: 21/07/2014, 17:20

... shaft. 100 80 60 40 20 0 86 42 02 46 Steering wheel torque (Nm) Fluid pressure (bar) 94/ 3 40 /2 0 Km/h 20 /hKm 80 Km/h 160 Km/h 30/3 18/3 14 /2 10 /2 6 /2 17/6 40 /6 8 8.7/3 Fig. 9 .40 Speed sensitive ... rack Large p.c.d. more direct Transition Small p.c.d. Transition Large p.c.d. 30 25 20 15 5 0 48 0 180 120 60 30 0 30 60 120 180 48 0 Turning steering wheel to left Tu...

Ngày tải lên: 21/07/2014, 17:20

... 2. 84 3. 02 3 .20 30 2. 40 2. 88 3.19 3 .40 3. 62 3. 84 35 2. 80 3.36 3. 72 3.97 4 .22 4. 48 40 3 .20 3. 84 4 .25 4. 54 4.83 5. 12 45 3.60 4. 32 4. 78 5.11 5 .43 5.76 50 4. 00 4. 80 5.31 5.67 6.03 6 .40 55 4. 40 5 .28 ... size 10 HH mm 12 HH mm 13 HH mm 14 HH mm 15 HH mm 16 HH mm 5 0 .40 0 .48 0.53 0.57 0.60 0. 64 10 0.80 0.96 1.06 1.13 1 .21 1 .28 15 1 .20 1...

Ngày tải lên: 21/07/2014, 17:20

... wheels have been turned to their safe full lock limit. 9 .2. 5 Roller type hydraulic pump (Fig. 9 .22 (a and b)) The components of this pump (Fig. 9 .22 (a and b)) consist of the stationary casing, cam ... finally back to the reservoir. 9 .2. 4 Power assisted steering lock limiters (Fig. 9 .20 (a and b)) Steering lock limiters are provided on power assisted steering employed on heavy duty v...

Ngày tải lên: 21/07/2014, 17:20