While both work on the premise of drive being sent to both the front and rear axle of a vehicle, they differ in their practical uses. The list of 4-wheel-drive cars is much shorter than all-wheel Quick Facts About AWD and 4WD. All-wheel drive (AWD) costs more but provides added traction in bad weather. 4-wheel drive (4WD) allows more towing capability than AWD. It’s not wise to use 4WD So, what is auto 4WD? Let’s find out. How Does the 4-Wheel Drive Auto System Work? In an auto 4-wheel drive car, torque is concentrated on the rear wheels in ordinary driving situations. However, the transfer case features electronic sensors that monitor the rotational speed of the car wheels. from the honda.ca site: Available on the Element Y-package, the Real Time 4WD system delivers added traction in snow, rain, mud and sand – especially on steep slopes and rutted dirt roads. Real Time 4WD sends power to the rear wheels when the primary front-wheel-drive system experiences slippage. The system consists of a power take off (PTO I installed an amp meter between the 4wd controller and the clutch solenoid. Here is a video, how it works in Auto in city driving www.youtube.com. The system is proactive in Auto, as you can see in the video. and in the 2WD the clutch engages when the acc pedal is over 50% and the calculated engine load is over 75% the prevent wheel spin. When “4WD Auto” mode is selected, the Outlander's 4WD system always sends some power to the rear wheels, automatically increasing the amount under full throttle acceleration. The coupling transfers up to forty percent of available torque to the rear wheels under full-throttle acceleration, and this is reduced to twenty five percent over 40 Auto - Front axle locked in, all power still goes to the rear. If the rear slips, power is sent to the front axle and power flows according to what it needs to get the vehicle from slipping. 4 Hi and 4 LO - Front axle locked in, and the t case does a 50/50 split of power. Differences of 4WD Lock and 4WD Low. 1. Features. 4WD Lock drives with both front and rear axles at the same time and is capable for high speed driving at 40-50MPH. It requires less torque as it focuses more on speed and has center differential lock, and does not engage in cross-axle locking. spSc.

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