Automotive transmission

An automotive transmission apparatus comprising:

• a first planetary gear set having a first rotation element, a second rotation element and a third rotation element;
• an input shaft connected to the first rotation element of the first planetary gear set;
• an output shaft fixed to the second rotation element of the first planetary gear set, wherein the first rotation element of the first planetary gear set is engaged with the second rotation element of the first planetary gear set;
• and
• a sleeve section slidably mounted at the first planetary gear set to selectively switch the automotive transmission apparatus to a first state in which the third rotation element of the first planetary gear set is secured to a transmission housing via a brake device, a second state in which the third rotation element of the first planetary gear set is directly engaged with one rotation element among the first and second rotation elements of the first planetary gear set via the sleeve section, or a neutral state in which the third rotation element is not secured to or engaged with the transmission housing or the one rotation element among the first and second rotation elements via the sleeve section.