As was said, a static camshaft can only be optimized for one RPM. Mazda's variable phasing broadens this range (blue line), but torque still drops at low and high RPMs.
就像前面说的，固定不变的凸轮轴只为了某个转速进行优化，马自达的可变相位拓展了这个区间(蓝线)，但是却在低转速和高转速的时候损失了一些扭矩。
As was said, a static camshaft can only be optimized for one RPM. Mazda's variable phasing broadens this range (blue line), but torque still drops at low and high RPMs.
就像前面说的，固定不变的凸轮轴只为了某个转速进行优化，马自达的可变相位拓展了这个区间(蓝线)，但是却在低转速和高转速的时候损失了一些扭矩。
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