HIS-Based Semiactive Suspension Dual-Frequency-Range Switching Control to Improve Ride Comfort and Antiroll Performance

Table 5

Optimized results.

Parameter	Symbol	Initial value	Bounce mode: optimized value				Roll mode: optimized value
			Low frequency		High frequency
			Min	Max	Min	Max	Min	Max
The diameter of throttle valve connecting to the rodless chamber in front axle (mm)	D1fl	5	2	4.8	4	6	—
	D1fr
The diameter of throttle valve connecting to the rodless chamber in rear axle (mm)	D1rl	5	2	4	4	6
	D1rr
The diameter of throttle valve connecting to the rod chamber in front axle (mm)	D2fl	5	2	5.4	5	5
	D2fr
The diameter of throttle valve connecting to the rod chamber in rear axle (mm)	D2rl	5	2	5.6	5	5
	D2rr
The diameter of throttle valve connecting to the accumulator in front axle (mm)	D3fl	5	—				2.5	6
	D3fr
The diameter of throttle valve connecting to the accumulator in rear axle (mm)	D3rl	5					2.5	6
	D3rr
Precharge pressure in accumulator (pa)	p0	5 × 10^5					2.5 × 10^6